Abstract: The present disclosure discloses a navigation method and an apparatus, and a storage medium and a device. The method comprises: obtaining a navigation start instruction for a set function; searching a navigation rule corresponding to the set function and locating a current position of a terminal according to the navigation start instruction; and forming a navigation route according to the current position and the navigation rule. The navigation method provided by the present disclosure, by obtaining a navigation start instruction for a set function, searching a navigation rule corresponding to the set function and locating a current position of a terminal according to the navigation start instruction, forms a navigation route according to the current position and the navigation rule.

Abstract: A method is provided that includes receiving user input identifying a travel destination for a first vehicle, determining, by a processor, a first route for the first vehicle to follow, and configuring the first vehicle to follow the first route. The method further includes obtaining a model for a second vehicle that shares a road with the first vehicle and comparing model to a pre-determined template for a vehicle that is known to be a special purpose vehicle in order to determine whether the first template and the second template match. The method further includes determining, by the processor, a second route that leads to the travel destination, when a match is found to exist, and switching the first vehicle from following the first route to following the second route.

Abstract: An electronic vehicle horn outputs a warning sound by exciting a diaphragm using a piezoelectric device that is driven with a composite signal generated, in part, by modulating a first fundamental square wave with a first modulating square wave and setting a frequency deviation at the time of the modulation in a predetermined range, modulating a second fundamental square wave with a second modulating square wave and setting a frequency deviation at the time of the modulation in a predetermined range, and generating the composite signal by mixing the modulated first fundamental square wave and the modulated second fundamental square wave.

Abstract: An illustrative apparatus includes a protective housing and a recording device. The protective housing can include a water-resistant layer comprising a material that is impervious to water. The water-resistant layer can define an inside space of the protective housing. The protective housing can also include a fire-resistant layer that surrounds the water-resistant layer and an outside layer that surrounds the fire-resistant layer. The recording device within the inside space can include a transceiver configured to receive sensed data from one or more sensory nodes and from a commercial panel of a building, a memory configured to store the data received by the transceiver, and a processor operatively coupled to the transceiver and the memory. The processor can be configured to publish the sensed data such that the sensed data is accessible to a first responder.

Abstract: Embodiments of the invention provide methods for user equipments to implicitly determine the location of the transmission of uplink control signaling information, that is in response to downlink data packet transmissions, using information that is already available through the downlink control signaling for the respective downlink scheduling assignments. No additional explicit downlink control signaling is required for the transmission of the above uplink control signaling from each user equipment.

Abstract: A whistle has a whistle member having a mouthpiece at a front thereof, a chamber therein, a passage communicated with the chamber, and an outlet at a sidewall of the chamber, and a light emitting device provided on the whistle member, which has a lamp, a battery and a switch device, wherein the lamp is conducted with the battery and the switch is provided at between the lamp and the battery to turn the lamp on or off.

Abstract: A selector device which can select a target storage location only with a simple sound without visually confirming displayed contents. The selector device has a memory which can store stored information respectively at a plurality of storage locations. Specifying information for specifying a sound particular to each storage location can be stored in the memory. The storage locations are sequentially specified in an uniform order through manipulations on an UP key and a DOWN key, causing the sounds particular to the respective storage locations to be generated sequentially from a speaker. A storage location, at which a desired sound is generated, is decided through a manipulation on a decision input key.

Abstract: A vehicle security system includes an audible alarm indicator, and a controller to generate an alarm indication comprising a plurality of distinguishable sound patterns. The sound patterns overlap in time yet are audibly distinguishable from one another to thereby create an illusion of multiple alarms. Accordingly, a would-be thief may be convinced that multiple vehicle alarms have been triggered and, thus, that more than one vehicle owner may be alerted. The vehicle security system may include at least one vehicle security sensor, and the controller is preferably responsive to the sensor to generate the audible alarm indication. The distinguishable sound patterns may be different from one another. In some other embodiments, at least two of the distinguishable sound patterns are the same sound patterns, but which are out of phase with one another to provide the illusion of multiple alarms. Each of the distinguishable sound patterns preferably includes successive repetitive portions.

Abstract: A standard digital display alarm clock is provided which is driven by a 1.5 volt DC power source. A two-tone alarm device, whose sound level is adjustable from 60 dB to 100 dB, is electrically wired to the clock and sounds when the clock attains a predetermined time. The power for the alarm device is supplied by either a 9 volt DC source contained within the clock or a 12 volt DC automotive cigarette lighter. The clock is provided with an intermittent alert feature which will cause the alarm to sound every four minutes for an indefinite amount of time and requires operator input to deactivate.

Abstract: A portable safety light and audible signal apparatus for placement in proximity to a building exit, to guide one or more fire fighters and emergency personnel to the exit during conditions of intense smoke and heat. The portable safety light and audible signal apparatus has a housing for containing, an audible signal generator capable of generating at least three distinctive audible signals, a strobe light mounted upon the top portion of the housing; an inverted U-shaped handle mounted on opposing sides of the strobe light, at least one switch in electrical communication with the strobe light and the audible signal generator, and a portable power supply located within the housing, in electrical communication with the switch.

Abstract: The battery powered smoke detector of the present invention is designed to provide an early warning of the presence of an environmental condition of fire or smoke to persons in remote areas of a building with respect to the location of the environmental condition. The smoke detector sensing the environmental condition emits an audible alarm of continuous tone, while emitting a frequency modulated radio signal directly to other like smoke detectors to activate their alarms in a manner indicative of the location of the smoke detector sensing the environmental alarm condition. Rechargeable light modules separate from the smoke detector are included that receive the frequency modulated radio signal from the smoke detector sensing the environmental alarm condition and illuminate paths of egress for the duration of the alarm condition or in case of 120VAC power failure. All components of the system are easy to install due to the modular design and conventional power sources.

Abstract: An alarm system incorporates a three-position wall switch which replaces a conventional two position switch, connected in circuit with a conventional exterior light fixture. The conventional light bulb in the exterior fixture is replaced by an adapter to which is connected an alarm unit and which receives the exterior light bulb. The three-position switch operates the light bulb at one half normal intensity in its normal mode and in its alarm position illuminates the bulb at its rated intensity and at the same time activates the alarm unit. The alarm may include a strobe light and horn for providing a visual and audible alarm. The alarm unit fits within the exterior light fixture and may include an auxiliary switch to allow it to be enabled or disabled as desired, while allowing the light bulb to provide two levels of brightness.

Abstract: A time delay and alarm system is provided to ensure safe operation of periodically activated apparatus having potentially dangerous moving parts. The system preferably employs a 555 type integrated timer circuit, a horn, and a pulse generator which causes the horn to produce a cyclical sound.

Abstract: An emergency vehicle audible warning system and method for improving emergency vehicle mission effectiveness and reducing the undesirable side effects of emergency vehicle audible warning systems. The audible warning system projects different selectable sound phrases that indicate varying levels of urgency. Periods of silence are included between sound phrases for, among other purposes, improving listener attentiveness and allowing operators of emergency vehicles to hear other approaching emergency vehicles. Urgency is further indicated by varying the duration of silent period between sound phrases with speed changes of the emergency vehicle. Higher and broader frequency spectrums compared to typical warning systems are utilized in order to better penetrate other vehicles and to project a less harsh, yet still effective warning.

Abstract: An annunciator or signal which can be mounted adjacent a door and actuated by a pet to signal its desire to be let in or out includes a housing with an opening in the lower front thereof and with a lever projecting outwardly through the opening. When a pet presses the lever, switch within the housing is closed to actuate a chime or the like.

Abstract: An emergency broadcast alert detector having a radio receiver scanning among several predetermined frequencies. The audio output of the radio receiver is connected to a noise detector that allows scanning to continue as long as noise indicative of no signal being received is present on the audio output. When the radio receiver scans to a frequency on which a broadcast is present, the lack of noise on the audio output of the receiver causes scanning to discontinue. The audio output is also connected to a tone detector that generates an alarm for a predetermined period in the even that an alert tone of a predetermined frequency is present on the audio output of the radio receiver.

Abstract: An oscillator and frequency divider provide a plurality of different frequency signals in response to any indication of vehicle abnormality. A plurality of switches indicate vehicle status such as a door, ignition and the like. A gate circuit having a plurality of gates passes one of said frequency signals at any one time in response to the particular vehicle abnormality indicated by a control circuit responsive to the switches. An alarm signal is generated having a frequency that is a function of the signal passed through the gate circuit.

Abstract: Improved ringer signal circuitry in a telephone handset modifies the leading edge of the ringer signal envelope causing ringer volume to gradually increase, over a period of time, to its maximum value.

Abstract: An emergency signaling system using the existing two-wire circuit (10) between a switch assembly (15) located within a dwelling and an externally mounted lamp housing (20) includes a switch (25) having an "off" position (27), a "normally on" position (28) whereby a lamp (55) is illuminated continuously, and an "alert" position (29) which activates a circuit (35) preferably included within the same protective enclosure (30) which contains the switch. The circuit (35) causes the current to the exterior lamp to be interrupted at a periodic rate, and it may also include as optional features an audible alarm (40) and a visual indicator (45) to identify when the alert feature is in operation. An adapter (60) is positioned between the lamp (55) and the existing lamp socket (50), and the adapter includes a circuit (75) responsive to the interruption of the current in the two-wire circuit to activate an audible alarm (65).

Abstract: In an electronic smoke sensing and alarm device, a dual ionization chamber arrangement comprises a single source of radioactive material and first and second chambers separated by a common electrically conductive electrode. A portion of the radioactive material ionizes the air in the first chamber and another portion of the radioactive material ionizes the air in the second chamber. This arrangement provides an accurate control on the current flow through each chamber.

Abstract: An automotive turn-signal flasher unit in which an astable transistor multivibrator periodically switches a flashing circuit through a switching relay is disclosed. The switching relay is formed as an electro-mechanical buzzer and thereby simultaneously provides the additional function of a separate acoustical signal source such as a buzzer.

Abstract: An emergency detection alarm and evacuation system adapted for use in a multi-storied building comprises a plurality of spatially distributed fire/smoke detectors and a plurality of exit signalling units respectively located adjacent the emergency exit doors on each building floor. A control panel on the lobby floor of the building includes lighted indicators which respectively indicate the actuation of particular fire/smoke detectors and lighted pushbutton switches operative to selectively actuate specific signalling units to thereby direct the building occupants to particular exit doors. Also disclosed is a closed circuit television system for visually monitoring the fire/smoke conditions in particular floor areas, for use in conjunction with said exit signalling units.

Abstract: An electrical signal generator comprises an electric wave oscillator for producing oscillations at one or other of two predetermined frequencies, an attenuator device for attenuating oscillations produced by the oscillator in a manner which varies over a period of time, and control means for controlling the oscillator to produce a burst of oscillations at one said predetermined frequency and a subsequent burst of oscillations at the other said predetermined frequency. The control means controls the attenuator device increasingly to attenuate the oscillations over the period of each burst.