Abstract: An alarm management system includes a control arrangement, an alarm device, a blockchain, a blockchain application, and a plurality of nodal access sites. The arrangement includes a processor and a storage medium. The device is configured to output an event signal to the control arrangement. The blockchain is stored in the medium, and includes a plurality of transaction types. Each transaction type includes at least one linked transaction, and the at least one linked transaction is time stamped. The blockchain application is stored in the medium, and is executed by the processor, and is configured to time stamp each one of the transactions. The blockchain is applied by the application to determine a current associated transaction with any one of the transaction types, and output data associated with the current transaction. The plurality of nodal access sites are configured to receive and output the data associated with the current transaction.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium to increase product usage. In some examples, a request to assign a task to a selected user is received. The selected user as a non-user of the task service. In response, task information and an identification of the task service is appended to an electronic document. Once the selected user has subscribed to the task service, the selected user is assigned to the task within the task service.

Abstract: A computer system for verifying information relating to an event. The computer system includes a network interface and a processor to receive a media feed containing information related to a potential event, identify the potential event and determine a location of the potential event from the information in the media feed, and solicit verification of information relating to the potential event from a set of responder devices of a plurality of responder devices. Each responder device of the set of responder devices has a location-tracking device, and each responder device of the set of responder devices is selected from a pool of responder devices in a vicinity of the potential event. The processor is further to determine whether information in the media feed is verified by verification solicited from the set of responder devices and output the determination.

Abstract: A peer system of subjects with health-related issues is formed based on an association of subjects and a particular type of electronic device or devices which provides information related to a specific health-related issue or issues obtained from particular subjects. By means of such associations, subjects can transmit to and receive messages from other subjects associated with the same type of electronic device. One way to associate subjects with health-related issues is through an association of a subject with a type or types of sensors. For example, each monitoring device may be associated with a subject, and the type or types of sensor or sensors may be associated with the subject and/or monitoring device. Devices, systems, methods and computer program products may be provided leveraging this association for various applications, e.g.

Abstract: A system is provided that includes a computer implemented method for the automated purchasing of a security system having a plurality of security equipment components for use and installation on a unique geo-coordinate referenced location (i.e., a property). The system also includes a computer implemented method for installing the security equipment on the property that was purchased using the automated purchasing system.

Abstract: A geospatial monitoring system may include a memory and a processor cooperating with the memory to obtain crowd-sourced mobile data (CSMD) for a geographic region, identify a plurality of geospatial sites within the geographic region based upon the CSMD, and determine a classification of each of the plurality of geospatial sites based upon the CSMD. The processor may further determine a pattern-of-life normalcy model for each of the geospatial sites based upon a respective classification, determine an abnormality in a respective pattern-of-life normalcy model at a given geospatial site based upon the CSMD, and initiate additional monitoring for the given geospatial site having the abnormality.

Abstract: A method of processing an emergency alert in a broadcast receiver includes receiving a broadcast signal including an emergency alert table, the emergency alert table including an emergency alert text related to an emergency alert message, information for identifying a viewing target for the emergency alert message and emergency-related broadcast service information for an emergency-related broadcast service, decoding the emergency alert table, displaying the emergency alert text in the decoded emergency alert table, and displaying an additional content related to the emergency alert message. The broadcast signal further includes wake-up information that includes 2 bits representing at least a first wake-up notification of a first emergency or a second wake-up notification of a second emergency different from the first wake-up notification of the first emergency.

Abstract: A method includes, receiving a biometric identifier from a visitor to the property, determining an arrival time of the visitor based on receiving the biometric identifier, comparing the arrival time of the visitor to an expected arrival time of an expected visitor, based on comparing the arrival time of the visitor to an expected arrival time, transmitting the biometric identifier and data identifying the expected visitor, receiving, by the monitoring system and from the external server, (i) data indicating that the biometric identifier corresponds to the expected visitor and (ii) data indicating that an electronic device of the expected visitor is located at the property, and based on (i) the data indicating that the biometric identifier corresponds to the expected visitor and (ii) the data indicating that the electronic device of the expected visitor is located at the property, granting, by the monitoring system, the visitor access to the property.

Abstract: A system and method for aggregating content, social sharing and instant messaging of saved electronic content to a memory location includes an administrator for controlling and allocating storage quota, based on a subscription type of one or more users. The user receives the electronic content on his computing device by selecting a text from the electronic content or the user can select the document by pressing the copy menu, which causes a pop-up user interface. The user can save the electronic content in one click directly on the user device or to a server as well as collaborate on the instant messaging platform to chat or share electronic content with other users.

Abstract: Methods are disclosed that, in some aspects, provide detecting an alarm event, determining whether the alarm event is a deviation from predefined criteria, and transmitting an alert notification to users of the security system if the alarm event is a deviation from the predefined criteria. The predefined criteria may relate to the location or type of one or more sensors of the security system, the location of users of the security system, the time of day, activities within the premises, and/or behavioral patterns of the users learned by the security system. Information transmitted in the alert notification may relate to the location of one or more users of the security system, the data recorded by one or more sensors of the security system, the state of alert of the security system, and/or confidential information required to terminate the alarm event.

Abstract: A management controller sends a first firmware measurement request to verify integrity of a device. The first firmware measurement request is sent at initial power on of the device, and is sent subsequent to negotiating a secure session between the management controller and the device. The management controller verifies a first firmware measurement in a first firmware measurement response to the first firmware measurement request prior to storing the first firmware measurement, and sends a heartbeat request to the device to monitor for a device state change. The management controller may receive a heartbeat acknowledgement from the device in response to the heartbeat request, wherein the heartbeat acknowledgement includes an indication of the device state change. In response to the receipt of the heartbeat acknowledgment that includes the device state change, the management controller sends a second firmware measurement request to the device.

Abstract: In order to provide a feature for processing an image of an object being photographed using photographic data having better quality, an image analyzer 1 is provided with a selection unit 104 and a bandwidth control request unit 105. The selection unit 104 selects a second photographing device associated with a first photographing device from among a plurality of photographing devices. The bandwidth control request unit 105 transmits, to a network control device, a request for change of the transmission data amount transmittable by the second photographing device.

Abstract: Methods and systems are disclosed for managing a premises. The premises may comprise a gateway device. The gateway device may detect a security system located at the premises. A remote server may comprise data for enabling a protocol supported by the security system. The gateway device may receive, from the remote server, the data for enabling a protocol. The gateway device may communicate, based on the protocol, with the security system.

Abstract: This disclosure pertains to a system and method configured provide entry check-in protection of a protected premises network including a central alarm monitoring station in communication with a plurality of protected premises, each protected premises comprises a protected premises panel configured to provide entry check-in protection. Protected premises panels include processors and memory configured to provide entry check-in protection comprising receiving an indication of a zone violation of the monitored premises, transmitting a check-in message to the central alarm monitoring station, and transmitting an alert, by the central alarm monitoring station, indicating a destruction of the protected premises panel, upon expiration of the predetermined entry delay period. The check-in message includes a duration corresponding to the entry delay time plus a set period, e.g., one minute.

Abstract: A patient monitoring hub can communicate bidirectionally with external devices such as a board-in-cable or a dongle. Medical data can be communicated from the patient monitoring hub to the external devices to cause the external devices to initiate actions. For example, an external device can perform calculations based on data received from the patient monitoring hub, or take other actions (for example, creating a new patient profile, resetting baseline values for algorithms, calibrating algorithms, etc.). The external device can also communicate display characteristics associated with its data to the monitoring hub. The monitoring hub can calculate a set of options for combined layouts corresponding to different external devices or parameters. A display option may be selected for arranging a display screen estate on the monitoring hub.

Abstract: A management apparatus and a management method thereof for electronic equipment are provided. The management apparatus includes a detector, a display and a processor. The detector obtains a detected data related to the electronic equipment. The display presents information. The processor is coupled to the display and the detector. The processor is configured to perform the following steps. The electronic equipment is identified according to the detected data of the electronic equipment. The detected data includes an image of the electronic equipment. Electronic equipment information is obtained according to an identified result of the electronic equipment. The electronic equipment information may include specification information, asset information and/or operation configuration. The electronic equipment information may be displayed on the display. Accordingly, the operation for an on-site engineer would be improved.

Abstract: A component 14a for a fire protection system 100 includes communications circuitry configured to communicate with another component 14b-14d of the fire protection system 100. The communications circuitry may allow a portable tool 20 to communicate with the other component 14b-14d via the component 14a.

Abstract: A method for automatically managing and responding to alarms in a building management system. The method includes obtaining an operating procedure comprising a set of action items to be performed in response to an alarm in the building management system. The method includes determining, for an action item of the set of action items, whether the action item is capable of being performed automatically by the building management system or whether the action item requires user involvement. The method further includes in response to determining that the action item is capable of being performed automatically, automatically performing the action item by the building management system. The method further includes in response to determining that the action item requires user involvement, providing the action item to a user device for action by a user.

Abstract: Systems and methods for reporting account and sensor configuration information to a central system are disclosed. A security, monitoring, and automation (SMA) system may operate one or more sensors according to sensor configuration information. The sensor configuration information may be used by a remote monitoring system to send notification messages based on sensor events from the SMA system. The sensor configuration information may be transmitted to the remote monitoring system via another remote computing system. The computing system may format the sensor configuration information to a format compatible with the remote monitoring system and transmit the formatted sensor configuration information to the remote monitoring system.

Abstract: A system includes a first sensor configured to identify information regarding an emergency condition associated with a structure and a second sensor configured to identify an occupancy pattern regarding the structure. The system also includes a processor operatively coupled to the first sensor, the second sensor, and a transceiver. The processor is configured to determine a severity of the emergency condition based at least in part on the information regarding the emergency condition and prioritize rescues within the structure based at least in part on the occupancy pattern. The system also includes the transceiver which is configured to transmit an identification of the emergency condition, a location of the structure, the occupancy pattern, the prioritization of rescues, and the severity of the emergency condition.

Abstract: A method for producing parts for a local structure at a construction site using a building information model, the building information model being stored on a central computing unit and providing data about the construction site or a building to be constructed at the construction site. The method includes determining dimensions of parts needed for the construction of the local structure; and producing the needed parts according to the determined dimensions, wherein determining the dimensions comprises a measuring operation performed by a user, wherein the user is guided through the measuring operation by a portable computing device using data provided by the building information model. The dimensions are provided to a work shop which is situated at the construction site and the needed parts are produced at the work shop according to the provided dimensions.

Abstract: Recent location and control information received from “lead” vehicles that traveled over a segment of land, sea, or air is captured to inform, via aggregated data, subsequent “trailing” vehicles that travel over that same segment of land, sea, or air. The aggregated data may provide the trailing vehicles with annotated road information that identifies obstacles. In some embodiments, at least some sensor control data may be provided to the subsequent vehicles to assist those vehicles in identifying the obstacles and/or performing other tasks. Besides, obstacles, the location and control information may enable determining areas traveled by vehicles that are not included in conventional maps, as well as vehicle actions associated with particular locations, such as places where vehicles park or make other maneuvers.

Abstract: A switch circuit includes a first circuit including a first switch and first output terminals, and a second circuit including a second switch and second output terminals. The first circuit and the second circuit are connected in series. The first circuit has a circuit configuration in which a combination of resistors in a signal path between the first output terminals of the first circuit differs depending on the electrical conduction state of the first switch. The second circuit has a circuit configuration in which a combination of resistors in a signal path between the second output terminals of the second circuit differs depending on the electrical conduction state of the second switch.

Abstract: Systems, apparatuses, and methods are described for detecting a state transition for sensors of a monitoring system, and determining whether the state transition is abnormal such that further action is warranted. The determination may be based on a history of state transitions in the monitoring system, and may be based on whether the same state transition has previously occurred at a corresponding time in the history, whether the new state has previously occurred following the corresponding time in the history, and other factors.

Abstract: Techniques are described for handling an event where a control panel or an alarm signaling device is tampered with or destroyed by a disablement tactic, e.g., a “crash and smash intrusion.

Abstract: A danger response evaluation device estimates the content of a possible danger through simulation using observation data acquired from an external device. Then, when the estimated content of the danger exceeds a predetermined threshold value, the danger response evaluation device gives, to a user terminal of a user, notification of an alarm that prompts a response to the danger. Thereafter, when having acquired the content of a response of the user to the danger from the user terminal of the user, the danger response evaluation device determines how much the content of the response corresponds to execution of a plan of a response to the danger stored in a storage unit in advance. Then, the danger response evaluation device evaluates, based on a result of the determination, how much the content of the actual response of the user contributes to a damage prevention effect related to the danger.

Abstract: The present disclosure describes a computer-implemented method to manage an industrial plant facility, the method including: monitoring multiple streams of input data from a network of sensors at the industrial plant facility, wherein the network of sensors include one or more camera devices; determining, by a server computer, an event during construction or operation of the industrial plant facility based on analyzing the multiple streams of input data in real-time; and based on the determined event, generating a notification to alert at least one operator of the industrial plant facility.

Abstract: A system for generating formal premises designs is discussed. The system begins by inputting an informal two-dimensional rendering of the premises. The system continues by analyzing the informal two-dimensional rendering and determining features found on the premises depicted by the two-dimensional rendering. The system then generates a three-dimensional model of the premises and populates it with interactive objects. Finally, the system provides multiple views of the three-dimensional rendering containing interactive objects.

Abstract: Disclosed is an alarm unit electrically connected to a loop circuit in a networked alarm system, the loop circuit being electrically connected to a first power source and a first controller, the alarm unit including: a current sink, a second controller for controlling the current sink, wherein the second controller performs an alarm unit status test including: receiving instructions from the first controller to actuate the current sink, and actuating the current sink.

Abstract: A vaping alert system having a sensor assembly for generating an alert, a digital device having a display for providing a notification to a custodian thereof when an alert is generated, and a computer network for communicating the alert from the sensor assembly to the digital device. The sensor assembly includes a baseboard; a sensor film that has a property of interest that changes a measurable amount upon exposure to a level of nicotine in an atmosphere of a confined space, as arises from the use of an electronic cigarette therein; a transducer associated with the sensor film for detecting a change in the property of interest and generating an electrical signal indicative of a change in the property of interest; and a microcontroller programmed for receiving the electrical signal indicative of a change in the property of interest and for generating an alert when the property of interest exceeds a preselected threshold level.

Abstract: A system for managing a battery removal from an electronic device is provided. The electronic device includes a battery interface including multiple battery coupling contacts that engage with battery contacts of the battery in an installed position of the battery. A battery removal detector is configured to detect, based on signals received via the battery interface, an ongoing battery removal process during which first battery contact(s) are disconnected from corresponding first interface contact(s) while second battery contact(s) remain connected with second battery coupling contact(s), and in response, to output a battery removal signal. The system also includes a controller that receives the battery removal signal and, still during the battery removal process, controls a memory device of the electronic device to prevent or complete a defined operation (e.g., writing of persistent storage keys) prior to completion of the battery removal process, to thereby prevent a corruption of the memory device.

Abstract: According to one embodiment, a method, computer system, and computer program product for tracking occupancy on a transit system is provided. The present invention may include receiving passenger information for passengers boarding a public transit system comprising one or more cars; counting the passengers within each of the cars of the public transit system based on the location of each of the passengers; identifying, based on the location of each of the passengers, whether each of the passengers is seated or standing; and displaying, based on the counting and identifying of the passengers, the current occupancy of each of the cars.

Abstract: A data link error feedback signaling system includes a transmitting network device and a receiving network device. The receiving network device may be operable to receive a network data unit from the transmitting network device over a data link, detect an error in the network data unit, and provide data link integrity information based on the error to the transmitting network device. The receiving network device may provide the data link integrity information by marking the data link flawed in a routing protocol, transmitting the data link integrity information via an informational protocol, and so on. The transmitting network device may respond to the data link integrity information, such as by marking the data link less preferred, marking the data link down, transmitting an alarm regarding the data link to a network operator, omitting taking an action upon determining that errors are below an error threshold, and so on.

Abstract: An example electronic device includes a wireless transmitter and a controller. The controller is to: determine an active communication band; determine a parameter value of a proximity sensing circuit based on the active communication band; configure the proximity sensing circuit based on the parameter value; and set an output power of the wireless transmitter based on a detection signal asserted from the proximity sensing circuit. The wireless transmitter is to transmit data using the active communication band and the output power.

Abstract: Techniques are discussed herein for providing notification messages to a user are provided. An example method of sending an alert message according to the disclosure includes receiving a notification message for a user, determining a location of the user, determining one or more notification devices based the location of the user, generating the alert message based on one or more notification preferences associated with the user and the one or more notification devices, and sending the alert message to at least one of the one or more notification devices based on the notification preferences.

Abstract: The present invention includes an apparatus and method for detecting the location of one or more sources of one or more target molecule, the apparatus comprising: a molecule detector; and a processor connected to the molecule detector and to a global position system, wherein the processor calculates the presence of the one or more target molecules, runs a computer code that determines a dynamic reverse gas stack model for the one or more target molecules, and triangulates the possible position for a source or effluent of the one or more target molecules based on the dynamic reverse gas stack model. The determined reverse gas stack model may have a Gaussian dispersion over one or more sampled locations.

Abstract: A detection and response device for a surveillance system detects events, responds to events, or both. The detection and response device may be used with or provided by a variety of surveillance systems, including peer to peer surveillance architectures. The device may utilize one or more defined geospaces. If an event occurs in a geospace a predefined response may then be provided. The predefined response may include automatically targeting one or more cameras to areas relevant to the event and presenting one or more predefined views optimized for viewing the event. If an event does not occur within a geospace, the detection and response device may provide one or more default responses.

Abstract: A network device including a detection unit that detects an event includes a communication setting managing unit that manages notification settings; an event collecting unit that, in the case in which notification information linked to the event detected by the detection unit is present, determines whether or not each of the details of the notification information is a notification target in accordance with the notification settings and generates a message for each of the details that are notification targets by assigning attribute information linked to the detail or the event; and an event transmitting unit that transmits the generated one or more messages to a management server, and, in the case in which it is determined that a plurality of details corresponding to the notification information linked to the detected event are determined to be the notification targets in accordance with the notification settings, information that can be used for uniquely identifying the event as a part of the attribute infor

Abstract: Systems, methods, and techniques for detecting the recording activity of a sensor are described. A monitoring system includes a sensor that is configured to generate sensor data, as well as a failsafe circuit that is configured to monitor an electronic signal of the sensor and determine that the sensor is recording. The system can further include a control unit that receives indication from the failsafe circuit that the sensor is recording and, based on determining that the control unit did not request the sensor to record or that the control unit is not aware that the sensor is recording, the system outputs a signal, e.g. to an indicator light, indicating that the sensor is recording.

Abstract: A wireless communication system includes a plurality of wireless sensors. A wireless sensor includes a radio frequency (RF) receiving circuit, and a sensing element, where the sensing element affects the resonant frequency of the RF receiving circuit. The wireless sensor further includes a processing module operable to determine a first value for an adjustable element of a plurality of elements for a known environmental condition, a second value for the adjustable element for an unknown environmental condition, a difference between the first and second values that corresponds to a change, and to generate a coded value representative of the change. The wireless communication system further includes one or more sensor computing devices coupled to the plurality of wireless sensors via a network. A sensor computing device includes a second processing module operable to receive the coded value and determine a sensed environmental condition based on the coded value.

Abstract: Devices, methods, and systems for verification of a visual inspection are described herein. One method for visual inspection verification of a fire alarm system having self-testing components includes using a visual inspection verification software mobile application on a mobile device, a technician selects one or more groups of fire alarm system components within areas of a building for visual inspection, wherein each self-testing fire alarm system component has an associated wireless beacon; and wherein each fire alarm system component having an associated wireless beacon emits a unique identifying signal which can be received by the mobile device when the technician moves the mobile device into a range corresponding to a visual distance of the technician to a particular fire alarm system component emitting the unique identifying signal to verify that a technician has been within the range corresponding to a visual distance of the technician to the particular component.

Abstract: Methods and apparatus, including computer program products, are provided for remote monitoring. In some example implementations, there is provided a method. The method may include receiving, at a remote monitor, a notification message representative of an event detected, by a server, from analyte sensor data obtained from a receiver monitoring an analyte state of a host; presenting, at the remote monitor, the notification message to activate the remote monitor, wherein the remote monitor is configured by the server to receive the notification message to augment the receiver monitoring of the analyte state of the host; accessing, by the remote monitor, the server, in response to the presenting of the notification message; and receiving, in response to the accessing, information including at least the analyte sensor data. Related systems, methods, and articles of manufacture are also disclosed.

Abstract: A building management system includes building equipment configured to consume electrical energy and generate thermal energy, thermal energy storage configured to store at least a portion of the thermal energy generated by the building equipment and to discharge the stored thermal energy, electrical energy storage configured to store electrical energy purchased from a utility and to discharge the stored electrical energy, and a controller. The controller is configured to determine, for each time step within a time horizon, an optimal amount of electrical energy stored or discharged by the electrical energy storage by optimizing a value function.

Abstract: The invention provides methods and apparatus for detecting when an online session is compromised. A plurality of device fingerprints may be collected from a user computer that is associated with a designated Session ID. A server may include pages that are delivered to a user for viewing in a browser at which time device fingerprints and Session ID information are collected. By collecting device fingerprints and session information at several locations among the pages delivered by the server throughout an online session, and not only one time or at log-in, a comparison between the fingerprints in association with a Session ID can identify the likelihood of session tampering and man-in-the middle attacks.

Abstract: Systems and methods are provided that can include displaying a floor plan on a graphical user interface, receiving a first user input identifying a respective location of each of a plurality of zones of the secured area via the floor plan displayed on the graphical user interface, receiving a second user input identifying a respective evacuation route to an emergency exit from each the plurality of zones via the floor plan displayed on the graphical user interface, identifying a respective distance factor from each of the plurality of zones to the emergency exit via the respective evacuation route, identifying a respective relative distance from each of the plurality of zones to a selected one of the plurality of zones, and multiplying the respective distance factor by the respective relative distance for each of the plurality of zones to identify a respective alarm sequence factor.

Abstract: A smoke alarm system comprises a smoke alarm, a temperature detector, a first sampling circuit, a second sampling circuit and an analysis module; a first terminal of the first sampling circuit is connected to the smoke alarm, and a second terminal is connected to a first input terminal of the analysis module; the first sampling circuit is used for sampling from the smoke alarm to obtain a smoke sample value which is then output to the analysis module; a first terminal of the second sampling circuit is connected to the temperature detector, and a second terminal is connected to a second input terminal of the analysis module; the second sampling circuit is used for sampling from the temperature detector to obtain a temperature sample value which is then output to the analysis module; and the analysis module determines whether a smoke alarm signal is generated.

Abstract: An interface actuator device, an interface actuator system, and a system and method for remotely controlling an interface of a control panel are disclosed. The interface actuator device includes an actuator for controlling the interface of the control panel and an attachment mechanism for mounting the interface actuator device to the control panel. The system can further include a camera for capturing images of the interface and a mobile device for controlling the actuator and viewing the images from the camera.

Abstract: Systems and techniques are provided for identifying patterns activity at a facility that seem to precede alarm events. In some implementations, a monitoring system is configured to monitor a property and includes a sensor configured to generate sensor data. A monitor control unit is configured to receive the sensor data and based on the sensor data, determine an alarm status of the monitoring system. A monitoring application server is configured to receive the sensor data and data indicating the alarm status of the monitoring system. The server applies the sensor data to a model that determines an estimated alarm status of the monitoring system and determines the estimated alarm status of the monitoring system is different from the alarm status. Based on determining that the estimated alarm status of the monitoring system is different from the alarm status of the monitoring system, the server overrides the alarm status.

Abstract: Methods and systems, including computer programs encoded on computer storage media, for reducing the likelihood of signaling failover in an alarm system, the method including identifying alarm events detected at monitored properties by monitoring systems that are located at the monitored properties; tracking the ability of a primary application infrastructure to transmit, to a central monitoring station server, the alarm events; detecting disruption in the ability of the primary application infrastructure to transmit the alarm events to the central monitoring station server; based on the detected disruption, enabling a signal transmission switch that switches a path for alarm events from the primary application infrastructure to a secondary application infrastructure, the secondary application infrastructure being an infrastructure operated by a cloud service provider; and based on enablement of the transmission switch, transmitting, by the secondary application infrastructure, at least one alarm event to the

Abstract: A portable hazard communicator device including a portable housing, a visual warning indicator, an audio warning indicator, a receiver, a first control unit, a second control unit and an attachment unit. The portable housing has an internal cavity for housing a plurality of light elements. The visual warning indicator is integrated within the housing for displaying a hazard message upon activation of the visual warning indicator. The audio warning indicator unit is integrated within the housing for emitting a hazard sound upon activation of the audio warning indicator. The receiver is configured to receive one or more signals from a companion device, and the one or more signals includes a power on signal. The first control unit is configured to activate and deactivate the visual warning indicator. The second control unit is configured to activate and deactivate the audio warning indicator. The attachment unit attaches the portable housing to a surface.