Abstract: A child restraint system for transporting a child within an automotive vehicle includes a weight sensor for determining the weight of the child and compares the child's weight to a recommended weight range. The weight sensor is disposed within a cushion that lines a shell and provides an electrical signal to a control unit. The control unit processes the electrical signal and provides an alert signal when the weight is not within the recommended range. Also, the child restraint system may include a second sensor for sensing a condition that depends upon the child's weight such as directional orientation or angular orientation of the child restraint system, or location or tension of a vehicle seat belt or tether that secures the child restraint system within the vehicle, or the location or tension of a harness for restraining the child occupant within the child restraint system.

Abstract: A device for providing grip strength feedback and alerting users when gripping strength fails used. The device comprises a trigger wire, two switches, an alerting means associated with the switches and a battery. A first end of the trigger wire is connected to one of the switches and a second end of the trigger wire is connected to the other switch. The device is secured on a handle of the walker such that the trigger wire is located below the handle of the walker and is grasped by the user and the ulna side and radial sides of the hand of the user are associated with the first and second ends of the trigger wire, respectively. The alerting means sends an audible alarm when the grasping strength of the user is weakened or completely lost.

Abstract: It is intended to provide a tap change operation monitoring apparatus for an on-load tap changer which can employ relatively simple and low-cost torque sensing means by mitigating an accuracy requirement with regard to detecting a starting time of tap change operation, acquire torque waveform data concerning tap change operation of a diverter switch in an accurate and reliable fashion, and discriminate an abnormal state of the tap change operation with high accuracy.

Abstract: A portable electronic device includes a housing, and a fragment mechanism installed inside the housing. The fragment mechanism includes a first fragment, and a second fragment pressing against the first fragment. The first fragment is capable of being separated from the second fragment when an impulsive force greater than a critical impulsive force is applied to the portable electronic device.

Abstract: An alarm device of a twisting bending spanner comprises: a body having an indication light; a handle at one end of the body; a bending tube at another end of the body; a strain gauge being installed in the bending tube; the strain gauge being electrically connected to the indication light of the body. When the force of the spanner applied to an object to be locked or released has achieved to a preset value, the indication light will light up to alert a user. An alarm light is further installed; when the force of the spanner applied to the object is achieved to an alarm value, the alarm light will light up. The body is a hollow body; the handle is soft and a front end of the handle is a toggle; the indication light and alarm light are received in the toggle.

Abstract: A computer implemented method, apparatus, and computer usable program code are provided for changing functionality for an electronic device. A set of signals is received from a set of sensors in the electronic device. Each signal in the set of signals includes a type of sensor from which the signal originated in the set of sensors and information detected by the set of sensors. An action is identified to be issued for the electronic device. The action is identified using the type of sensor and the information. The action is automatically initiated in the electronic device. The automatically initiated action changes the functionality for the electronic device.

Abstract: A computer monitoring system includes a processor and sensors electrically thereto that are positioned beneath the playing surface directly below a boundary line. The sensors are connected in series to the processor such that each sensor is independently activated and generates an analog output signal when a predetermined weight limit is detected thereon. The sensors are positioned below a three-point and a free-throw line. An analog-to-digital converter is coupled to the processor and sensors that receives and converts the analog signals to digital signals. A memory includes programmable software instruction that cause the system to perform a series of operations. The processor generates and transmits audible and visual notification signals for each of the consecutive digital signals when the time span is greater than the threshold interval.

Abstract: An ergonomic lightweight hand pressure sensor-warning device for use with hand held objects like sport devices, steering devices, writing devices or computer devices, as well as the method for its assembly. This new hand pressure sensor warning device is designed as a relatively thin plaster/band-aid to attach the device onto the outside surface of the handgrips of hand held devices like a golf club, making the attachment to and detachment from the hand held device very simple and user-friendly. The device contains an electrical membrane switch, an electrical indicator with an alarm device and a streamlined oblong housing element which contains the principal components in a compact unit. Due to its low manufacturing costs, the warning device is also highly attractive as a commercial advertising product and as a corporate gift or premium product. The unintended and unexpected detachment of the device during a golf swing is practically impossible.

Abstract: A device and method to detect force and provide feedback to a runner or jogger so that the person can judge whether to adjust his or her stride in order to lessen the impact on his or her body. The device includes a housing, a power supply, a piezo sensor, a controller, and an output generator. The piezo sensor is accommodated within a user's shoe and is connected to the controller, and the controller, output generator and power supply are accommodated within the housing. The controller is connected to the output generator so that it is set to generate a signal to the output generator when a threshold level of force signal is received from the piezo sensor. The sensor signals the controller when force from an impact is applied to the piezo sensor and the controller signals the output generator when one or more signals indicating threshold levels of force have been reached, and the output generator generates a perceivable signal in response to the controller's one or more signals.

Abstract: A system for classifying an occupant located on a vehicle seat comprising a controller configured to receive signals from a plurality of sensors for detecting the vertical forces on the seat. The controller is configured to determine whether the detected vertical forces are indicative of the weight of the seat and the weight of the occupant located on the vehicle seat.

Abstract: A method and apparatus is disclosed for sensing when a person is disposed on or arises from a support that flexes or sags when a person is disposed thereon. Such supports include beds, supports for a mattress or a seat, such as a sling-type seat found on wheelchairs. In one embodiment, an assembly is positioned beneath the support and includes a sensor. The sensor indicates when tension on the assembly exceeds a certain amount which is indicative of sagging of the support. The assembly may be adjustable in length to maintain proper tension in the absence of sag. The sensor may be a switch that includes a plunger which operates against the bias of a biasing member which either completes or interrupts an electrical circuit in response to tension placed on the assembly due to sagging of the support. In another embodiment, the assembly may be at least partially elastic. In yet another embodiment, a strain gauge may be employed to detect stretching of the assembly due to sagging of the support.

Abstract: A rock bolt includes a hollow body and a gap along a length of the hollow body. At least one strain gauge is affixed to an inner surface of the rock bolt and is accessible from the gap. The rock bolt may include a data logger within the hollow body and coupled to receive signals from one or more strain gauges, and to record these signals in a memory. The data logger may comprise a data port adapted to be accessible from the outside of a bore hole into which the rock bolt is inserted. The data logger also may include at least one of a visual and auditory alarm. A graphic user interface software program can be used to download data from the data logger and set certain operating parameters of the data logger.

Abstract: According to some embodiments, a Microelectromechanical System (MEMS) sensor includes a sensing portion that generates a mechanical movement in response to a measurand input. The sensor also includes a logic portion to mechanically perform a logic function in response to the movement.

Abstract: A hand tool with at least two alarm devices comprises a flat handle with having a rectangular shape which is formed by has two first parallel surfaces and two second parallel narrow surfaces connected between the two first surfaces; at least one end of the handle being formed with a driving head; an output device having a sensing unit; the sensing unit being electrically connected to a strain gauge installed at a predetermined position of the handle; and the output device having an alarm unit; the alarm unit of the output device being installed at the connection of the handle and the driving head. An auxiliary alarm unit is installed at one surface of the handle, or the auxiliary alarm unit is installed at an inclined recess between two adjacent surfaces of the handle or the auxiliary alarm unit is arranged across two adjacent surfaces of the handle.

Abstract: A collision detection sensor for a vehicle of the present invention includes a single piezoelectric film which is flat, plural pairs of electrodes which sandwich the piezoelectric film and measure voltages between the electrodes, and spaces provided between the plural pairs of electrodes.

Abstract: An entrapment prevention sensor detecting an entrapment of an obstacle between an opening and closing door of a vehicle constituting a first member and including a corner portion and a periphery of a body opening portion constituting a second member, includes a protector including an assembly portion and a hollow portion, the assembly portion assembled onto a fitting flange provided at one of the first and second members, the assembly portion prevented from being provided at the corner portion, a sensor main body accommodated within the hollow portion, and a corner member provided at the corner portion and including a receiving portion and a fixed plate portion, the receiving portion having a hollow and curved shape corresponding to a shape of the corner portion and accommodating the sensor main body, the fixed plate portion including a clip bore and fixed to the fitting flange by means of a clip.

Abstract: The invention relates to a locking storage device in which objects are deposited for the later removal thereof. The inventive device consists of: at least one safe-deposit box (2) which is intended to house the object and which comprises a door (3) and a lock (4), a code input device (9a, 9b), and a control unit (11) which is designed to authorise an object to be deposited therein and subsequently removed therefrom following the entry of a removal code. The device also comprises a weight sensor (14a, 14b) which supports the weight of the safe-deposit box. The aforementioned control unit is designed to determine the weight of the object contained in the safe-deposit box (2) once an object has been deposited therein, to determine the variation in the weight of the safe-deposit box when an object is being removed and to emit an alarm signal when the object has been removed if said variation does not correspond to the weight of the object.

Abstract: A computed tomography assembly is provided comprising at least one clamped imaging component and a clamping fastener having a clamping head attached thereto. A load-sensing washer is positioned between the clamping head and the at least one clamped imaging component and includes a pressure sensor element in communication with a wireless transmitter transmitting a fastener load value. A wireless receiver is adapted to remotely receive the fastener load value and a processor in communication with the wireless receiver includes logic adapted to monitor the fastener load value in real time.

Abstract: A device and method are provided for determining the wear of a sole of a shoe. The device includes first and second sensors receivable in the sole of the shoe. The sensors are axially spaced and generate signals in response to corresponding impact forces acting thereon. A control circuit is connectable to the first and second sensors. The control circuit compares the difference between the first and second signals to a threshold and generates an alert signal in response to the difference between the first and second signal meeting the threshold.

Abstract: An occupant determination apparatus and an occupant determination method accurately determine a size of an occupant, with a simple configuration where a plurality of electrodes are arranged on one layer, and eliminate errors due to the capacitance between an occupant and surrounding car-body metal parts or the like, and thus suppress erroneous determination. The apparatus includes a sensor having a plurality of seat section electrodes arranged on a sitting section, and a determination section. The determination section includes an oscillator, a capacitance detecting section which detects the current flowing through a seat section electrode in order to detect the capacitance, a switching circuit which switches the connection of the capacitance detecting section to the seat section electrode, and a controlling section which outputs a switch control signal.

Abstract: An information transmission system comprising a conductor operable to carry a desired information signal. A first tube substantially surrounds the conductor and a second tube substantially surrounds the first tube to define a substantially fluid-tight chamber therebetween. In another aspect, the invention provides an information transmission system suited to transmit information between a first electronic device and a second electronic device located a distance from the first electronic device. The system includes an information transmission line that connects to the first electronic device and the second electronic device. A conduit surrounds at least a portion of the information transmission line. The conduit defines a substantially fluid-tight chamber. A quantity of fluid is disposed within the chamber and a sensor is positioned to measure a parameter of the quantity of fluid. An indicator is operable to signal a breach condition in response to the measured parameter.

Abstract: An actuated braking and distance sensing system for operational regulation of belt loader equipment and/or other applicable ground support equipment, wherein the present invention incorporates, among other embodiments, spring-responsive actuated emergency braking and distance sensing systems, emergency braking and distance sensing systems implemented via linear variable displacement transducers, and/or emergency braking and distance sensing systems actuated via sonar, lasers and/or infrared sensors. Structural incorporation of the afore-referenced emergency braking and distance sensing systems within airline ground support equipment, particularly belt loader equipment, seeks to effectively reduce accidental collision of such ground support equipment with parked aircraft.

Abstract: A vehicle seat assembly includes a sensor assembly that is used to provide data for an occupant classification system. The data is used to determine such characteristics as seat occupant weight and position. These characteristics are used to control deployment of a safety restraint mechanism such as an airbag. The sensor assembly is part of a mat that is placed on top of a foam cushion used to form a seat bottom. Fasteners are used to permanently attach the mat to the foam to restrict lateral and vertical movement of the mat relative to the foam.

Abstract: The present invention concerns a system for measuring the vibration an operator of a piece of the equipment encounters while operating the equipment. The system includes at least one motion measuring means, such as an accelerometer. The accelerometer may be affixed to the equipment or integrated into the equipment. In addition, motion data recording equipment that is in electrical communication with the accelerometer may also be provided. An alarm may be used to indicate that a preset limit has been or is about to be exceeded.

Abstract: The present invention provides an apparatus for determining a seat belt tension is within a proper range. The apparatus is designed to be easily adapted to existing vehicle safety belt systems. Three points of contact with the safety belt allow the apparatus to be used in portable applications including installing child seats. Generally, two of the contact points support the belt while the third contact point is accomplished using a member responsive to the tension of the seat belt. The response of the member is in communication with a device to indicate the amount of tension present in the seat belt. A visual or audible signal is provided to the operator when sufficient tension has been reached and maintained. The apparatus can be mechanical or electro-mechanical in nature.

Abstract: A passenger detection device for a vehicle is provided with multiple load sensors, each of which detects a load on a seat of the vehicle within a predetermined detection range of the load sensor, and an ECU that determines passenger information of the seat. The ECU has at least one calculation range, each of which limits the detection range of each corresponding one of the multiple load sensors. The ECU determines the passenger information based on a detection data value of each load sensor, which is outputted from the load sensor and falls within the corresponding calculation range of the load sensor.

Abstract: A method and apparatus for detecting an improperly installed auxiliary child seat of the type that is secured in a motor vehicle by the seatbelt, and providing an alert to a vehicle operator in the case of improper installation. A seat occupancy sensor, a seatbelt buckle condition sensor, and a seatbelt tension sensor provides electrical signals to a child seat detection module, which determines that an improper installation condition exists if the auxiliary child seat is present and the seatbelt buckle is unfastened. The child seat detection module further determines an improper installation condition if the auxiliary child seat is present, the seatbelt buckle is fastened, and the seatbelt tautness is not within an acceptable range. If an improper installation condition is detected, the child seat detection module triggers an alerting device, such as a warning light on the instrument panel or audible chime.

Abstract: A vehicle safety system includes independently operable child location determining mechanism that has a sound wave emitting module nested therein and care giver location determining mechanism for determining a location of the care giver. The care giver location determining mechanism includes a housing that fits on a key ring, a processor including a memory, a speaker coupled to the processor, a power supply source coupled to the speaker and the processor, and a receiver for communicating with the sound emitting module. The memory includes software instructions causing the system to perform the steps of generating and transmitting a first RF signal to the child location determining mechanism, and generating and transmitting a second RF signal to the child location determining mechanism. The first and second signals are responsive to the care giver location determining mechanism when the care giver moves beyond the predetermined distance from the child location determining mechanism.

Abstract: A child seat adapted for use in a vehicle, the child seat comprising: a shell portion; a harness for securing a child to the child seat, the harness comprising adjustable harness tether(s) secured to the shell portion at one end and having a latch plate at the other, the latch plate being configured to releasably engage a buckle of the harness; a tension sensor(s) for providing a signal indicative of a tension of the adjustable harness tether(s); and an electronic control unit secured to the shell portion, the electronic control unit being operably coupled to the tension sensor(s) to receive the signal, the electronic control unit being capable of processing the signal to compare the signal to a signal indicative of a predetermined range of acceptable tension, wherein the electronic control unit provides an output indicating whether the tension of the adjustable harness tether(s) is(are) within the predetermined range.

Abstract: In an occupant detection system, a determination section of an occupant detection ECU determines occupancy status of the seat based on loads applied to the seat. A power supply section of the ECU provides a power supply voltage lower than a battery voltage of the vehicle to load sensors and the determination section. A resistor is connected in a sensor power supply line that connects the load sensors with the power supply section. A zener diode is connected between the resistor and the power supply section through branch connection. A resistance of the resistor is predetermined so that the resistor becomes open when a short occurs and does not affect to dynamic ranges of the load sensors. A breakdown voltage of the zener diode is predetermined between the power supply voltage and a guaranteed voltage of the ECU.

Abstract: A closure cap (10) is provided with an audible warning when the cap (10) is removed from a container (12). The closure cap (10) preventing the inadvertent consumption of pharmaceutical products, bleaches or other products by children or other minors. In use, the closure cap (10) may be provided with child resilient means and can be screwed on to any standard container (12). When the cap (10) is removed from the container (12), mechanical energy is expended by the user and such mechanical energy is converted to sufficient electrical energy using a piezoelectrical element (14) contained in the cap (10). The electrical energy generated is then conditioned and stored using signal conditioning electronics (26) such that and alarm signal of sufficient level is sounded.

Abstract: A method and apparatus is described for enabling a single sensor to indicate a greater quantity of information about a sensed event, or the occurrence of many different types of events. A sensor system employs a number of individual sensors with single-use indication means (such as an explosive charge). Each individual sensor is equipped with a chronometer. The sensors are programmed to transmit information through their single-use indication means at specific times with each specific time being indicative of a particular type of event or of specific information about an event. A central monitor chronologically records all sensor indications and compares indication times to a schedule of time keyed information to determine the nature of each sensor indication.

Abstract: A multi-directional shock sensor having a central post surrounded by an omnidirectionally moveable toroidal mass. A plurality of anchor members surrounds the mass and carries one arm of a latching arm assembly. The other arm of each latching arm assembly is carried by, and radially extends from the mass to oppose a respective first arm. A shock event will cause the mass to move in a certain direction to an extent where one or more of the arm assemblies will latch. The latching may be determined by an electrical circuit connected to contact pads on the central post and on the anchor members.

Abstract: A sensor assembly for use in a vehicle seat cushion for detecting the presence of an occupant includes a first member defining an internal bore. A second member has a portion slidably disposed in the bore of the first member. The first member is movably mounted relative to the first member about an axis. A spring biases the first member relative to the second member. A sensor device is mounted in one of the first and second members.

Abstract: A function monitor (10) broadly comprises a detector (14) to sense a condition, a transmitter (18) to monitor the detector (14), and a base unit (20) to receive a status signal from the transmitter (18) indicative of the detector's status. The detector (14) may comprise a pressure switch, a position switch, a level switch, a temperature switch, and/or virtually any device that may be used to electrically monitor the condition. The transmitter (18) preferably receives power through a wireless connection to the base unit (20). The base unit (20) preferably receives the status signal from the pallet transmitter (18) over the wireless connection and actuates a output (30) according to the status signal. The output (30) that may be used to warn an operator of the condition, or take other necessary actions, such as preventing a pump from running.

Abstract: The capacitance of a shielded capacitive load cell is determined so as to minimize the effect of stray or parasitic capacitance between the load cell and other objects including the shield. The load cell conductors are coupled across input and output terminals of an operational amplifier that is tied to a reference voltage. A constant current is applied to the load cell, and the resulting rate of change in voltage at the amplifier output is measured as a representation of the load cell capacitance. In a vehicle seat sensor application including an electromagnetic interference shield between the load cell and the seating surface, the amplifier output is coupled to the load cell electrode furthest from the shield, the amplifier maintains the other load cell electrode at a virtual reference voltage, and the shield is tied to the reference voltage.

Abstract: A machine guarding system generally includes a switch mat in electrical communication with a machine being guarded. The switch mat is adapted to be placed on a floor adjacent the machine being guarded and includes a pressure actuated switch mechanism which causes power to the machine to be terminated when a pressure is applied to the switch mat. The switch mat further includes a status indicator display disposed on a surface of the switch mat which is illuminated based on a status of the machine being guarded. In a preferred embodiment, the machine guarding system further includes a machine control unit for controlling power to the machine being guarded. The switch mat is in electrical communication with the machine control unit, wherein the switch mechanism causes the machine control unit to terminate power to the machine when a pressure is applied to the switch mat. The machine control unit also illuminates the indicator display based on a status of the machine being guarded.

Abstract: A sensor device includes a G sensor producing an electric signal in accordance with physical displacement of its sensing portion and a casing mounting this G sensor. A casing chamber is sealed with a potting material so that the G sensor is covered with the potting material. The potting material has the role of surely damping the high-frequency vibration which generally causes resonance. Thus, the G sensor can accurately detect the collision and vibration without being adversely influenced by the resonance.

Abstract: A gyroscope (10) for determining rate of rotation includes a giant magnetoresistor (GMR) (14) attached to a mass (12) oscillating along a first axis. When the gyroscope (10) is rotated, the mass (12) also oscillates along a second axis perpendicular to the first axis. A magnetic element (16), which includes of a strip of magnetic bits (18), is disposed along the first axis, the second axis, or both. The magnetic bits (18) supply discrete magnetic fields. The GMR (14) changes in electrical resistance when exposed to these magnetic fields. A voltage sensor (20) and processor (34) are then utilized to calculate the rate of rotation.

Abstract: A load warning system for use with a vehicle having a load-support portion, a frame, and a vehicle-support portion movably coupled to the frame. The system has an engagement portion mountable to the vehicle-support portion or the frame and is movable therewith as a unit. A load indicator is mountable to the other one of the vehicle-support portion or the frame, and is spaced apart from the engagement portion when in a first position. The load indicator moves to a second position and engages the engagement portion when the frame moves a selected distance in response to the load applied to the load-support portion. The load indicator provides a signal upon being moved to the second position. A warning indicator is coupled to the load indicator and provides an improper load warning to a user in response to the signal from the load indicator.

Abstract: A brake early warning system for a vehicle is disclosed. The vehicle has (1) a steering column assembly (500) having a plurality of components, and (2) a vehicle broadcast system, which includes brake lights, a horn, and headlights. The brake early warning system includes a movement sensor (20) which is connected to the steering column assembly (500), and senses relative movement between two of the steering column assembly (500) components when a driver braces against the steering wheel (508) in an urgent braking situation. In such cases, movement sensor (20) senses relative movement, and generates a signal which activates the brake lights, horn, and headlights, thereby alerting any following driver, as well as others in the vicinity, that the vehicle has commenced rapid braking. In a second embodiment the brake early warning system includes inputs of both the weight of the driver and the force applied to the steering wheel, both of which affect the behavior of the system.

Abstract: A drop detection device having a spherical inertia member disposed within an enclosure. The enclosure has multiple faces, preferably six faces oriented orthogonally, with each face having a pressure contact member. The exertion of a predetermined force by the spherical inertia member on the pressure contact member causes a signal to be activated. Multiple enclosures maybe disposed in different orientations in a housing of a fragile product to provide a signal if the product is dropped in any one of multiple directions.

Abstract: A vehicle occupant sensing system including a controller and at least one sensor assembly. The sensor assembly has a housing with a base and an upper slide member supported for movement toward and away from the base. At least one sensor is operatively mounted relative to the upper slide member and base. The sensor is operable to detect movement of the upper slide member toward and away from the base and is operable to generate an electrical signal correlative of the movement of the upper slide member toward and away from the base. Additionally, the system includes at least one discrete wire electrically connecting the sensor and controller. The discrete wire is operable to communicate the electric signal from the sensor to the controller. The vehicle occupant sensing system may be employed in a seat assembly.

Abstract: A patient ambulation motion detector designed to be worn on the body. The detector incorporates a wireless transmitter, a motion sensor switch and a second call switch. It may be enclosed in a plastic case and attached most commonly to the upper anterior chest by a non-allergic double-backed tape.

Abstract: Method and apparatus for identifying and categorizing the weight and characteristics of the occupant currently occupying a vehicle seat. The method for identifying and categorizing the occupant or object involves measuring the deflection of the upper surface of the seat cushion at one or more points due to compression of the cushion produced by the weight distribution of the occupant. The system contains multiple sensor/emitter pairs for detecting the deflection. The system also includes a sensor to measure ambient temperature, preferably for temperature compensation due to the effects extreme temperatures may have on the compression properties of the seat cushion material and sensor/emitter pairs. A system processor interprets the data acquired by the sensors, and utilizes an algorithm and training tables to output a control signal indicative of the categorization of the occupant or object.

Abstract: An improved force-measurement system utilizes active magnetostrictive sensors for generating a signal representative of a force, such as the weight of a person or thing on a seat within a motor vehicle, or the force applied to the horn sensor switch on a vehicle steering wheel. The active magnetostrictive sensor includes an excitation coil and a detection coil.

Abstract: Method and apparatus for identifying and categorizing the weight and characteristics of the occupant currently occupying a vehicle seat. The method for identifying and categorizing the occupant or object involves measuring the deflection of the upper surface of the seat cushion at several points and therefore the weight distribution of the occupant. The system contains multiple weight sensors arrayed for detecting the distribution of the load causing the seat deflection. The system also includes a sensor to measure ambient temperature, preferably for temperature compensation due to the effects extreme temperatures may have on the compression properties of the seat cushion material and the weight sensors. A system processor interprets the data acquired by the sensors, and utilizes an algorithm and weight tables to simulate a neural network in providing an output a control signal indicative of the categorization of the occupant or object.

Abstract: An automated warning system for a platform assembly. The system includes a measuring device mountable on the platform assembly for measuring a parameter representing loading on the assembly, a warning device for generating a warning, and a processor operatively connected to the measuring device and the warning device. The processor is configured to receive information relating to at least one of the design and operation of at least one of the platform assembly and the object, determine a limit for the parameter based on the information, compare the parameter to the limit, and activate the warning device to generate a warning when the parameter compares unfavorably to the limit.

Abstract: The present invention has as its object to provide a vehicle passenger detection device that is able to prevent erroneous determinations arising from mechanical hysteresis. The present invention provides a vehicle passenger detection device comprising: weight measurement means, provided with a weight sensor disposed between a seat and floor of a vehicle, that measures the load applied to the seat; fluctuation amplitude detection means that detects the amplitude of fluctuation in values measured by the weight measurement means; correction means that applies a negative correction to the value measured by the weight measurement means when the fluctuation amplitude is smaller than a stipulated value; and passenger presence determination means that determines the presence of a passenger upon the seat by comparing the value measured by the weight measurement means against a stipulated threshold value.

Abstract: The invention relates to a mobile working machine, particularly a mobile concrete pump, comprising a device for monitoring the stability thereof when in operation. The working machine comprises a chassis (10), which contains a supporting structure with two front and two rear support struts (20). The support struts can be extended out of a transporting position and into at least one supporting position and each can be supported on a surface (28) by a telescopic supporting jack or foot (26). The working machine additionally comprises a working boom (14), which can be extended out of a transporting position and into working positions that project beyond the chassis, which can rotate about a vertical axis that is fixed with regard to the chassis, and which is preferably provided in the form of a concrete distributing boom. Measuring devices for determining the respective supporting load are arranged in the area of the supporting foot and their output signals are sent to a stability monitoring device.