JP2011162052A - On-vehicle alarm device and alarm system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-vehicle alarm device and an alarm system usable in various kinds of places without being limited to a parking lot of one's own house, and generating an alarm even when the device is broken or a battery of a vehicle is broken. <P>SOLUTION: The on-vehicle alarm device 10 mounted on vehicles 1a, 1b transmits an alarm request to another vehicle through the radio communication of a radio communication unit 6, when an abnormality detection unit 3 detects any abnormality of one's own vehicle. The on-vehicle alarm device 10 generates an alarm by an alarm unit 4 when the radio communication unit 6 receives the alarm request from the another vehicle. The on-vehicle alarm device may have a constitution of generating the alarm of the first pattern when detecting any abnormality of one's own vehicle, and generating the alarm of the second pattern when receiving the alarm request from another vehicle. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an in-vehicle alarm device and an alarm system that issue an alarm in order to prevent theft of a vehicle.

  2. Description of the Related Art Conventionally, for the purpose of preventing vehicle theft, an in-vehicle alarm device that outputs an alarm sound or the like when a vehicle abnormality is detected has been widely used. In the in-vehicle alarm device, it is possible to issue an alarm by detecting breakage of the window glass of the vehicle, opening of the hood or lifting of the vehicle itself by sensors provided in various parts of the vehicle. The alarm by the in-vehicle alarm device is performed by a method such as outputting a warning sound using a vehicle horn or a dedicated speaker, or outputting a warning light using a vehicle lamp or a dedicated warning light, for example. .

  However, if the sensor that detects vehicle abnormality is destroyed, the device that outputs the alarm sound or light is destroyed, the vehicle battery is destroyed, or the power line from the battery to the vehicle-mounted alarm device is disconnected. In such a case, there is a problem that the in-vehicle alarm device cannot sufficiently perform the alarm.

  In Patent Document 1, a detection unit that detects theft, a plurality of alarm units, and a control unit that drives the alarm unit based on detection information of the detection unit, the detection unit, the alarm unit, and the control unit are wireless. A burglar alarm device that can perform an alarm operation even when the detection unit or alarm unit is destroyed or the radio wave itself is disturbed has been proposed. Yes. This theft alarm device can issue an alarm when at least one alarm unit is operable when the detection unit, the alarm unit, and the wireless link of the control unit are disconnected.

  In addition, a device for detecting an abnormality is mounted on the vehicle, a device for alarming is installed outside the vehicle (for example, in the home of the owner of the vehicle), and wireless communication is performed between the devices. When an abnormality is detected, notification by wireless communication is performed, and an alarm device outside the vehicle can issue a warning. In this configuration, when the abnormality detection device in the vehicle is destroyed, the alarm device outside the vehicle can issue an alarm.

JP 2005-173719 A

  However, the theft alarm device described in Patent Literature 1 cannot issue an alarm when a plurality of alarm units are destroyed. When multiple alarm units are destroyed sequentially, an alarm can be issued for a short period from the time when the first alarm unit is destroyed until the last alarm unit is destroyed. If it does not exist, a short-term warning is not sufficient. Further, even when the vehicle battery is destroyed or the power line is disconnected, the theft alarm device described in Patent Document 1 cannot issue a sufficient alarm. In the case of a configuration in which an alarm can be stopped by a theft in a short period of time, even if an alarm sound is output, if the output stops within a few seconds, the surrounding people will recognize that it is malfunctioning or will the alarm be noticed Most likely not.

  In addition, in the configuration where the alarm device is installed outside the vehicle, it cannot be used outside the place where the alarm device is installed, such as a parking lot at home, so the problem of preventing theft when parking outside the home is not possible. is there.

  The present invention has been made in view of such circumstances. The object of the present invention is not limited to a home parking lot or the like, and can be used in various places. Another object of the present invention is to provide an in-vehicle alarm device and an alarm system that can issue an alarm even when the battery is destroyed.

  An in-vehicle alarm device according to the present invention includes an abnormality detection unit that detects an abnormality of a vehicle, an alarm unit that issues an alarm, a communication unit that performs wireless communication with another device, and the abnormality detection unit detects an abnormality. A transmission unit that transmits an alarm request to the other device by the communication unit, and an alarm control unit that performs an alarm by the alarm unit when the alarm request is received from the other device by the communication unit. It is characterized by that.

  The on-vehicle alarm device according to the present invention is characterized in that the alarm control means performs an alarm by the alarm means when the abnormality detection means detects an abnormality.

  The on-vehicle alarm device according to the present invention performs different alarms when the alarm control unit receives an alarm request from another device through the communication unit and when the abnormality detection unit detects an abnormality. It is characterized by the above.

  The on-vehicle alarm device according to the present invention further includes storage means for storing date and time information related to the alarm request when an alarm request is received from another device by the communication means.

  The on-vehicle alarm device according to the present invention further includes an imaging control unit that performs imaging by a camera mounted on the vehicle when an alarm request is received from another device by the communication unit.

  Moreover, the vehicle-mounted alarm device according to the present invention is characterized by further comprising notification means for making a report using a public communication network when an alarm request is received from another device by the communication means.

  The on-vehicle alarm device according to the present invention is characterized in that the communication means performs wireless communication with another device using radio waves, light, or sound waves.

  The on-vehicle alarm device according to the present invention is characterized in that the communication means performs wireless communication with two or more different means with another apparatus.

  Moreover, the vehicle-mounted alarm device according to the present invention further includes a battery remaining amount detecting unit that detects a remaining amount of a battery mounted on the vehicle, and the alarm control unit includes a remaining amount detected by the battery remaining amount detecting unit. When the amount is less than a predetermined amount, the warning by the warning means is not performed.

  Further, in the vehicle alarm system according to the present invention, the abnormality detection means includes an impact sensor that detects an impact on the window glass of the vehicle, a switch that detects opening and closing of the door, bonnet or trunk of the vehicle, or the vehicle An abnormality of the vehicle is detected according to a detection result of an inclination sensor for detecting an inclination.

  In addition, the vehicle-mounted alarm device according to the present invention includes an alarm unit that issues an alarm, a communication unit that performs wireless communication with another device, and an alarm request received from another device by the communication unit. And an alarm control means for performing an alarm by the alarm means.

  In addition, the alarm system according to the present invention is mounted on one vehicle and detects abnormality of the vehicle, abnormality detecting means for detecting abnormality of the vehicle, communication means for performing wireless communication with other devices, and the abnormality detecting means detects abnormality. Wireless communication between the vehicle-mounted abnormality detection device having a transmission means for transmitting an alarm request to the other device by the communication means, and the alarm means mounted on another vehicle and issuing an alarm, the vehicle-mounted abnormality detection device. A communication unit that performs communication, and a vehicle-mounted alarm device that includes an alarm control unit that performs an alarm by the alarm unit when an alarm request is received from the vehicle-mounted abnormality detection device by the communication unit.

  In addition, the alarm system according to the present invention has a communication unit that is installed on the road and wirelessly communicates with the in-vehicle abnormality detection device, and when the alarm request is received from the in-vehicle abnormality detection device by the communication unit The apparatus further includes an imaging device that performs imaging.

  In addition, the alarm system according to the present invention has a communication unit that is installed on the road and wirelessly communicates with the in-vehicle abnormality detection device, and when the alarm request is received from the in-vehicle abnormality detection device by the communication unit It further comprises a streetlight that increases the amount of light.

In the present invention, an alarm device including means for detecting abnormality of a vehicle and means for issuing an alarm is mounted on the vehicle. This in-vehicle alarm device is provided with means for performing wireless communication with other devices outside the vehicle (for example, an in-vehicle alarm device mounted on another vehicle), and when an abnormality is detected, Send an alarm request to the device. Conversely, when an alarm request is received from another device of the vehicle body, the in-vehicle alarm device issues an alarm by the alarm means of the own vehicle.
When a plurality of vehicles each equipped with the vehicle-mounted alarm device having the above-described configuration are parked side by side in, for example, a monthly parking lot or a parking lot in a shopping center (at least a plurality of vehicles within the range of wireless communication of the vehicle-mounted alarm device) If any vehicle is stolen and the in-vehicle alarm device detects an abnormality and sends an alarm request to the outside of the vehicle, it is installed in another vehicle parked around this vehicle. The in-vehicle alarm device receives the alarm request and issues an alarm. As a result, one or a plurality of other vehicles parked around the vehicle in which an abnormality has occurred simultaneously issue an alarm, and thus a high crime prevention effect can be obtained.
Even when the battery mounted on the vehicle or the vehicle alarm system is destroyed, actions such as opening the vehicle hood or destroying the window glass are performed, and the vehicle alarm system detects these actions as abnormal. be able to. It takes at least several seconds to several tens of seconds to break the battery or on-board alarm device from the act of opening the hood or destroying the window glass. To other devices. Since it is very difficult to destroy a battery or an in-vehicle alarm device or the like for a plurality of vehicles in a short time, an alarm can be reliably issued.
Therefore, it is not limited to the place where the vehicle is parked, etc., and when at least two vehicles are parked within the range of wireless communication, a warning is surely issued for an abnormality occurring in any vehicle. be able to.

  In the present invention, when an abnormality of the own vehicle is detected, the in-vehicle alarm device transmits an alarm request to other devices outside the vehicle by wireless communication, and issues an alarm by its own alarm means. Good. In this configuration, different alarms, such as changing the pattern or timbre of the alarm sound, for example, when the user detects an abnormality and issues an alarm and when the alarm request is received from another device and the alarm is issued. With this configuration, when the vehicle-mounted alarm devices of a plurality of vehicles issue alarms all at once, it is possible to easily identify which vehicle has detected an abnormality.

In the present invention, when an alarm request from another device is received, the in-vehicle alarm device stores date / time information related to the received alarm request. The date and time information related to the alarm request may be the date and time when the alarm request is received. When the vehicle-mounted alarm device on the transmission side adds the date and time information to the alarm request and transmits it, the date and time information attached to the alarm request It may be. The storage of the date / time information is preferably performed by a nonvolatile memory element such as an EEPROM (Electrically Erasable Programmable Read Only Memory) or a flash memory.
As a result, when an abnormality such as theft occurs in other vehicles in the vicinity, the date and time of occurrence of the abnormality can be checked.

  Further, in the present invention, when a camera such as a drive recorder is mounted on the vehicle, the in-vehicle alarm device performs imaging with the camera when receiving an alarm request from another device. As a result, when an abnormality such as theft occurs in another vehicle, it is possible to leave a surrounding situation at the time of the abnormality as an image.

  In the present invention, when the vehicle has a function of performing communication using a public communication network (for example, a communication network for a mobile phone), the in-vehicle alarm device receives an alarm request from another device. Sometimes reports are made to security services or the police using the public communication network. Thereby, it is possible to more reliably prevent the vehicle from being stolen.

  In the present invention, the wireless communication by the in-vehicle alarm device is configured to be performed using radio waves, light, or sound waves. In the case of this configuration, wireless communication is performed by using two or more different means of radio waves, light, or sound waves, and an alarm request is transmitted when an abnormality is detected. Even if the alarm is disturbed, the alarm request can be transmitted by wireless communication by another means. For example, when the wireless communication is only by radio waves, there is a possibility that the in-vehicle alarm device cannot transmit an alarm request to other devices when the radio communication is interrupted by interference radio waves or the like. When the two methods are used, the alarm request can be transmitted by light communication even when radio communication by radio waves is obstructed.

  The above-mentioned on-vehicle alarm device issues an alarm when an alarm request is received from another device, but if the remaining battery level is low, an alarm is issued until the vehicle engine cannot be started. There is a risk that the remaining amount will decrease. Therefore, in the present invention, the remaining amount of the vehicle battery is detected, and when the detected remaining amount is less than a predetermined amount, the in-vehicle alarm device does not issue an alarm even if an alarm request is received from another device And Thereby, it can prevent that the remaining amount of a battery reduces extremely by operation | movement of a vehicle-mounted alarm device.

  In the present invention, according to the detection result of the impact sensor for detecting the impact on the window glass of the vehicle, the switch for detecting the opening / closing of the door, bonnet or trunk of the vehicle, or the tilt sensor for detecting the tilt of the vehicle, The on-vehicle alarm device detects an abnormality of the vehicle. Abnormalities such as intrusion into the vehicle by breaking the window glass can be detected by the impact sensor. An abnormality such as unauthorized opening / closing of a door, bonnet or trunk can be detected by an open / close detection switch. An abnormality such as a vehicle being lifted by a machine such as a lift can be detected by the tilt sensor.

  Further, in the present invention, when the on-vehicle abnormality detection device mounted on one vehicle detects an abnormality, an alarm request is transmitted by wireless communication, and the on-vehicle alarm device mounted on another vehicle transmits an alarm request by wireless communication. If an alarm is received, an alarm is issued. As a result, when an abnormality such as theft occurs in any vehicle in a parking lot where a plurality of vehicles are parked, an in-vehicle alarm device of another vehicle parked in the vicinity can issue an alarm.

  In the present invention, a means for performing wireless communication with an on-vehicle abnormality detection device for a vehicle is mounted on an imaging device such as a monitoring camera (installed on a traffic light or a sign) installed on the road. When the imaging device that has received the alarm request from the in-vehicle abnormality detection device starts imaging, it is possible to leave the situation around the vehicle as an image when an abnormality occurs. In this configuration, the direction of the in-vehicle abnormality detection device that transmitted the alarm request is detected, and a function that adjusts the imaging direction with respect to the detected direction is installed in the imaging device, thereby leaving a more useful video. You can also.

  Further, in the present invention, the streetlight installed on the road is equipped with means for performing wireless communication with the in-vehicle abnormality detection device of the vehicle, and when the alarm request is received from the in-vehicle abnormality detection device, the streetlight emits light. Increase. Accordingly, it is possible to brightly illuminate the surroundings of a vehicle in which an abnormality has occurred at night or the like, and the crime prevention effect can be enhanced.

  In the case of the present invention, when an in-vehicle alarm device (or a vehicle abnormality detection device) mounted on one vehicle detects an abnormality, the alarm request is wirelessly transmitted, and is mounted on other vehicles existing around the vehicle. The in-vehicle alarm device receives an alarm request and issues an alarm, so that it can be used in various places without being limited to a parking lot at home, etc. Even when the above is performed, it is possible to reliably issue an alarm for vehicle abnormality.

It is a schematic diagram which shows the structure of the alarm system which concerns on Embodiment 1 of this invention. It is a block diagram which shows the structure of the vehicle-mounted alarm device which concerns on Embodiment 1 of this invention. It is a schematic diagram for demonstrating operation | movement of the alarm system which concerns on Embodiment 1 of this invention. It is a flowchart which shows the procedure of the process at the time of the abnormality detection which the vehicle-mounted alarm device which concerns on Embodiment 1 of this invention performs. It is a flowchart which shows the procedure of the process at the time of the alarm request reception which the vehicle-mounted alarm device which concerns on Embodiment 1 of this invention performs. It is a block diagram which shows the structure of the vehicle-mounted alarm device which concerns on Embodiment 2 of this invention. It is a schematic diagram which shows the structure of the alarm system which concerns on Embodiment 3 of this invention.

(Embodiment 1)
Hereinafter, the present invention will be specifically described with reference to the drawings showing embodiments thereof. FIG. 1 is a schematic diagram showing a configuration of an alarm system according to Embodiment 1 of the present invention, and FIG. 2 is a block diagram showing a configuration of an in-vehicle alarm device according to Embodiment 1 of the present invention. In the figure, reference numerals 1a and 1b denote vehicles, and FIG. 1 shows a state in which two vehicles 1a and 1b are parked side by side in a parking lot or the like. Each vehicle 1a, 1b is equipped with a battery 2 for storing electric power and an in-vehicle alarm device 10 according to the present invention. The on-vehicle alarm device 10 includes an abnormality detection unit 3, an alarm unit 4, a control unit 5, a wireless communication unit 6, and the like, and each unit operates with electric power supplied from the battery 2.

  The abnormality detection unit 3 of the in-vehicle warning device 10 is provided with output signals from an impact sensor 31, an open / close detection switch 32, a tilt sensor 33, and the like arranged at appropriate positions of the vehicles 1a and 1b. Accordingly, an abnormality occurring in the vehicles 1a and 1b is detected, and the detection result is notified to the control unit 5.

  The impact sensor 31 is a sensor that detects an impact on the window glass of the vehicles 1a and 1b, and outputs a signal corresponding to the magnitude of the impact applied to the window glass. The abnormality detection unit 3 can determine that an abnormality has occurred in the vehicles 1a and 1b when the impact detected by the impact sensor 31 exceeds a threshold value. Thereby, abnormality, such as the window glass of vehicles 1a and 1b being broken, can be detected.

  The open / close detection switch 32 is a switch for detecting the open / closed states of the doors, bonnets and trunks of the vehicles 1a and 1b, and outputs a signal corresponding to the open / closed state. In FIG. 2, only one open / close detection switch 32 is shown, but in reality, it is provided for each of the doors, bonnets, and trunks of the vehicles 1a and 1b. A signal from the detection switch 32 is input. When the detection result of one of the open / close detection switches 32 changes from the closed state to the open state in a state where the vehicles 1a and 1b are parked or the vehicle-mounted alarm device 10 is operating, the abnormality detection unit 3 It can be determined that an abnormality has occurred in the vehicles 1a and 1b. As a result, it is possible to detect abnormalities such as a suspicious person entering the vehicles 1a and 1b with the door open, destruction of the device or battery by opening the bonnet, and theft of luggage in the trunk.

  The tilt sensor 33 is a sensor that detects the tilt of the vehicles 1a and 1b, and outputs a signal corresponding to the tilt angle of the vehicle body. The abnormality detection unit 3 can determine that an abnormality has occurred in the vehicles 1a and 1b when the inclination angle of the vehicle body detected by the inclination sensor 33 changes by a predetermined angle or more while the vehicles 1a and 1b are parked. Thereby, it is possible to detect an abnormality such as the vehicles 1a and 1b being lifted by a lift or the like.

  The alarm unit 4 of the in-vehicle alarm device 10 issues an alarm to the outside of the vehicle by driving a horn 41 and a lamp 42 mounted on the vehicles 1a and 1b in accordance with a control command given from the control unit 5. The lamp 42 is a lamp such as a head lamp, a tail lamp, or a room lamp of the vehicles 1a and 1b. In the present embodiment, the alarm unit 4 can switch the sound output pattern by the horn 41 to either the first pattern or the second pattern, and similarly, the lighting (flashing) pattern of the lamp 42 is changed to the first pattern or the second pattern. Switching to any one of the second patterns is possible.

  The wireless communication unit 6 of the in-vehicle alarm device 10 performs processing related to wireless communication performed with other devices outside the vehicle. Thereby, for example, the vehicle-mounted alarm device 10 of the vehicle 1a can transmit and receive data wirelessly with the vehicle-mounted alarm device 10 of the vehicle 1b parked within a predetermined range. In the present embodiment, the in-vehicle alarm device 10 can perform wireless communication using radio waves and wireless communication using light. For this reason, the radio communication unit 6 performs radio communication using the radio wave transmission / reception unit 61 and the optical transmission / reception unit 62 arranged at appropriate positions of the vehicles 1a and 1b.

  The radio wave transmission / reception unit 61 demodulates the received radio wave into reception data and outputs it to the radio communication unit 6, a modulation circuit that modulates transmission data given from the wireless communication unit 6, an antenna that transmits / receives radio waves related to wireless communication, It has a demodulation circuit and the like. The optical transmission / reception unit 62 includes a light emitting element that outputs an optical signal corresponding to transmission data given from the wireless communication unit 6, a light receiving element that receives an optical signal transmitted from another device, and the like. Yes. Note that a plurality of light emitting elements and light receiving elements of the light transmitting / receiving unit 62 may be mounted so as to be able to communicate around the vehicle 1a, 1b over 360 °.

  Further, the vehicles 1a and 1b are provided with a remaining amount detector 21 for detecting the remaining amount of the battery 2. The remaining amount detection unit 21 detects the remaining amount of the battery 2 from the voltage value of the battery 2 or the integrated value of the current output from the battery 2 and notifies the control unit 5 of the detection result.

  Specifically, the control unit 5 of the in-vehicle alarm device 10 includes an arithmetic device such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit), and a storage device such as a ROM (Read Only Memory) and a RAM (Random Access Memory). The control process of each part in the vehicle-mounted alarm device 10 and various arithmetic processes are performed. The control unit 5 performs a process of issuing an alarm by the horn 41 and the lamp 42 by giving a control command to the alarm unit 4 when notified of the abnormality detection of the vehicles 1a and 1b from the abnormality detection unit 3 and wireless communication. A process for transmitting an alarm request to the outside of the vehicle is performed by giving a transmission command to the unit 6. The control unit 5 performs a process of issuing an alarm by the horn 41 and the lamp 42 by giving a control command to the alarm unit 4 when an alarm request received from the outside of the vehicle received by the wireless communication unit 6 is given. However, when the remaining amount of the battery 2 is less than a predetermined amount, the control unit 5 does not issue an alarm in response to an alarm request from another vehicle.

  FIG. 3 is a schematic diagram for explaining the operation of the alarm system according to the first embodiment of the present invention, in which the battery 2 of the vehicle 1a is destroyed (including disconnection of a power line from the battery 2 to each part). An example of the operation is shown. In order to destroy the battery 2 of the vehicle 1a, it is necessary to pry the hood of the vehicle 1a, and when the bonnet is pricked, the abnormality detection unit 3 detects an abnormality by an output signal from the open / close detection switch 32 (see FIG. 3 (1) Abnormality detection). The abnormality detection unit 3 notifies the detection of the abnormality to the control unit 5, and in response to this, the control unit 5 gives a control command to the alarm unit 4, and operates the horn 41 and the lamp 42 in the first pattern to issue an alarm. Along with (FIG. 3 (2) alarm), a transmission command is given to the wireless communication unit 6, and an alarm request by radio and light signals is transmitted outside the vehicle ((3) alarm request transmission in FIG. 3). Thereafter, when the battery 2 of the vehicle 1a is destroyed (FIG. 3 (4) battery destruction), the power supply to the equipment in the vehicle 1a is stopped, so the alarm by the in-vehicle alarm device 10 of the vehicle 1a is stopped ( Fig. 3 (5) Alarm stop).

  The alarm request wirelessly transmitted from the in-vehicle alarm device 10 of the vehicle 1a is received by the radio communication unit 6 of the in-vehicle alarm device 10 mounted on the vehicle 1b existing around the vehicle 1a ((6) alarm in FIG. 3). Request received). The wireless communication unit 6 of the in-vehicle warning device 10 of the vehicle 1b that has received the warning request gives the received warning request to the control unit 5, and in response thereto, the control unit 5 gives a control command to the warning unit 4, and the horn 41 And the lamp | ramp 42 is operated by a 2nd pattern and a warning is emitted (FIG. 3 (7) warning).

  As described above, the vehicle-mounted alarm device 10 of the vehicle 1a issues a first pattern alarm and wirelessly transmits an alarm request to the vehicle 1b after the bonnet of the vehicle 1a is pry open until the battery 2 is destroyed. Even after the battery 2 is destroyed and the alarm is stopped, the in-vehicle alarm device 10 of the surrounding vehicle 1b that has received the alarm request can continuously issue the second pattern alarm.

  FIG. 4 is a flowchart showing a procedure of processing performed when the vehicle-mounted alarm device 10 according to Embodiment 1 of the present invention detects an abnormality, and is processing performed by the control unit 5 of the vehicle-mounted alarm device 10. First, the control unit 5 of the in-vehicle alarm device 10 determines whether or not the abnormality detection unit 3 has detected an abnormality in the vehicles 1a and 1b (step S1). When the abnormality detection unit 3 detects an abnormality (S1: YES), the control unit 5 gives a control command to the alarm unit 4 to operate the horn 41 and the lamp 42 in the first pattern and issue an alarm ( In step S2), by giving a transmission command to the wireless communication unit 6, an alarm request is transmitted to the outside of the vehicle (step S3), and the process proceeds to step S6.

  Further, when the abnormality detection unit 3 has not detected an abnormality (S1: NO), the control unit 5 further determines whether or not a predetermined time has elapsed since the start of the alarm by the alarm unit 4 (Step S1). S4). When the predetermined time or more has elapsed since the start of the alarm (S4: YES), the control unit 5 gives a control command to the alarm unit 4 to stop the alarm (step S5), and the process proceeds to step S6. If the predetermined time or more has not elapsed since the start of the alarm (S4: NO), the control unit 5 advances the process to step S6.

  Next, the control unit 5 determines whether or not an instruction related to the end of the process, such as an instruction to stop the alarm function by the user, has been given (step S6). If no end instruction has been given (S6: NO) ), The process is returned to step S1, and the above process is repeated. When the end instruction is given (S6: YES), the control unit 5 stops the alarm if it is being output (step S7), and ends the process.

  FIG. 5 is a flowchart showing a procedure of processing at the time of alarm request reception performed by the in-vehicle alarm device 10 according to Embodiment 1 of the present invention, and is processing performed by the control unit 5 of the in-vehicle alarm device 10. First, the control unit 5 of the in-vehicle alarm device 10 determines whether or not an alarm request from another vehicle has been received by the wireless communication unit 6 (step S21).

  When the alarm request is received (S21: YES), the control unit 5 acquires the remaining amount of the battery 2 detected by the remaining amount detection unit 21 (step S22), and whether or not the remaining amount of the battery 2 is greater than a predetermined amount. Is further determined (step S23). Here, for example, the minimum battery capacity required for starting the engine of the vehicles 1a and 1b can be set in advance as the predetermined amount used for the determination. When the remaining amount of the battery 2 is greater than the predetermined amount (S23: YES), the control unit 5 operates the horn 41 and the lamp 42 in the second pattern to issue an alarm (step S24), and the process proceeds to step S27.

  When the alarm request from another vehicle has not been received (S21: NO), the control unit 5 further determines whether or not a predetermined time has elapsed since the start of the alarm by the alarm unit 4 (step S21). S25). When a predetermined time or more has elapsed since the start of the alarm (S25: YES), or when the remaining amount of the battery 2 is equal to or less than the predetermined amount in step S23 (S23: NO), the control unit 5 goes to the alarm unit 4. A control command is given to stop the alarm (step S26), and the process proceeds to step S27. If the predetermined time or more has not elapsed since the alarm was started (S25: NO), the control unit 5 advances the process to step S27.

  Next, the control unit 5 determines whether or not an instruction relating to the end of the process, such as an instruction to stop the alarm function by the user, has been given (step S27). If no end instruction has been given (S27: NO) ), The process is returned to step S21, and the above process is repeated. When the end instruction is given (S27: YES), the control unit 5 stops the alarm if it is being output (step S28), and ends the process.

  In the alarm system according to the first embodiment having the above-described configuration, when the in-vehicle alarm device 10 mounted on the vehicles 1a and 1b detects an abnormality of the own vehicle, the alarm request is transmitted by wireless communication, In the situation where a plurality of vehicles 1a, 1b equipped with the in-vehicle warning device 10 are parked within the range of wireless communication by providing a configuration that issues a warning when an alarm request is received, any of the vehicles 1a, 1b Even if the vehicle-mounted alarm device 10 or the battery 2 or the like is destroyed and cannot issue an alarm, the other vehicles 1a and 1b parked in the vicinity can issue an alarm. An effect can be obtained. Therefore, it is not limited to a place where the vehicles 1a and 1b are parked, and any vehicle can be used as long as at least two vehicles equipped with the in-vehicle alarm device 10 are parked within the wireless communication range. It is possible to reliably issue an alarm for an abnormality occurring in 1a and 1b.

  The on-vehicle alarm device 10 is configured to issue a first pattern alarm when the abnormality detection unit 3 detects an abnormality of the host vehicle, and issue a second pattern alarm when an alarm request from another vehicle is received. By doing so, it is possible to easily identify which vehicle 1a, 1b has detected an abnormality in a situation where a plurality of vehicles 1a, 1b are simultaneously issuing a warning.

  Moreover, even if the vehicle-mounted alarm device 10 is configured to perform transmission / reception of alarm requests by wireless communication using two different means (radio wave and light), even when wireless communication by any means is obstructed. Since the alarm request can be transmitted and received by another means, the alarm can be reliably issued. Moreover, when the remaining amount of the battery 2 is less than a predetermined amount, the in-vehicle alarm device 10 is configured so as not to issue an alarm even when an alarm request from another vehicle is received, thereby causing an abnormality of the other vehicle. It is possible to prevent the remaining amount of the battery 2 of the host vehicle from being reduced to a level where the engine cannot be started.

  In the present embodiment, an abnormality occurring in the vehicles 1a and 1b is detected by the impact sensor 31, the open / close detection switch 32, and the tilt sensor 33. However, the present invention is not limited to this. It is good also as a structure which performs abnormality detection of 1a, 1b. Moreover, although it was set as the structure which issues a warning by the horn 41 and the lamp | ramp 42, it is not restricted to this, It is good also as a structure which issues a warning by another method. For example, instead of using the horn 41 of the vehicles 1a and 1b, a dedicated speaker for generating an alarm sound may be provided.

(Embodiment 2)
FIG. 6 is a block diagram showing a configuration of the in-vehicle alarm device 10 according to Embodiment 2 of the present invention. The in-vehicle alarm device 10 according to the second embodiment has a function of storing information related to an alarm request in the storage unit 7 with respect to the in-vehicle alarm device 10 according to the first embodiment (see FIG. 2), and imaging by the in-vehicle camera 81. , A function for performing a report by the communication device 82, and a function for performing wireless communication using sound waves in the sound wave transmitting / receiving unit 63 are added.

  The storage unit 7 included in the in-vehicle alarm device 10 is configured by a nonvolatile memory element such as an EEPROM or a flash memory, and can store data provided from the control unit 5. The control part 5 memorize | stores the information of the date concerning transmission / reception of an alarm request in the memory | storage part 7, when an alarm request is received from the vehicle-mounted alarm device 10 of another vehicle. The date and time information to be stored may be determined by the reception side in-vehicle alarm device 10 when the alarm request is received, or may be transmitted by the transmission side in-vehicle alarm device 10 with the date and time information added to the alarm request. Good. Furthermore, when the transmission-side in-vehicle alarm device 10 is configured to transmit other information such as a vehicle type or a parking position to the alarm request, for example, the reception-side in-vehicle alarm device 10 transmits these information to the date and time. You may memorize | store in the memory | storage part 7 with information.

  The vehicles 1a and 1b are equipped with an in-vehicle camera 81 such as a drive recorder or a back camera, and the control unit 5 of the in-vehicle alarm device 10 gives a control command to the in-vehicle camera 81 to detect the surroundings of the vehicles 1a and 1b. Imaging can be performed. When the control unit 5 receives an alarm request from the in-vehicle alarm device 10 of another vehicle, the control unit 5 starts imaging with the in-vehicle camera 81 and records the captured image. As long as the in-vehicle camera 81 can record an image, the image may be recorded in the in-vehicle camera 81. If the in-vehicle camera 81 cannot record an image, an in-vehicle alarm is issued. The video may be stored in the storage unit 7 of the device 10.

  The vehicles 1a and 1b are equipped with a communication device 82 that performs communication using a public communication network such as a mobile phone, and the control unit 5 of the in-vehicle alarm device 10 gives a control command to the communication device 82, Communication using a public communication network can be performed. When the control unit 5 receives an alarm request from the in-vehicle alarm device 10 of another vehicle, the control unit 5 issues a control command to the communication device 82 in order to notify a predetermined report destination (for example, a security service company or the police). give.

  The in-vehicle alarm device 10 according to Embodiment 2 has a function of performing wireless communication using sound waves as well as wireless communication using radio waves and light. The sound wave transmission / reception unit 63 performs transmission / reception of ultrasonic waves having a frequency that cannot be recognized by humans with the sound wave transmission / reception unit 63 of the other vehicle-mounted alarm device 10. The control unit 5 of the in-vehicle alarm device 10 gives an alarm request transmission command to the wireless communication unit 6 when the abnormality detection unit 3 detects an abnormality of the vehicles 1a and 1b. The wireless communication unit 6, in accordance with a transmission command from the control unit 5, has three types of radio wave communication using the radio wave transmission / reception unit 61, optical communication using the optical transmission / reception unit 62, and sonic communication using the sound wave transmission / reception unit 63. An alarm request is transmitted outside the vehicle by wireless communication. In addition, when the radio communication unit 6 receives an alarm request from another vehicle at any of the radio wave transmission / reception unit 61, the optical transmission / reception unit 62, and the sound wave transmission / reception unit 63, the wireless communication unit 6 notifies the control unit 5 to that effect. 5 performs an alarm by the alarm unit 4 in response to the received alarm request.

  The in-vehicle alarm device 10 according to the second embodiment having the above-described configuration is configured to store the date and time information related to the received alarm request in the storage unit 7, so that the vehicles 1 a and 1 b that are the alarm request transmission sources The date and time when the abnormality occurred can be specified later. Further, when the alarm request is received, the in-vehicle alarm device 10 captures an image with the in-vehicle camera 81, so that an abnormality such as theft occurs in the vehicle 1a, 1b that is the source of the alarm request. It is possible to leave the situation around the vehicles 1a and 1b in which this occurs as an image.

  Further, when the alarm request is received, the in-vehicle alarm device 10 is configured to notify the security service company or the police through the communication device 82, so that theft of the vehicle can be prevented more reliably. . Furthermore, even if the communication device 82 is not installed in the vehicle 1a, 1b that is the transmission source of the alarm request, a notification is made if the communication device 82 is installed in the vehicle 1a, 1b that has received the alarm request. It becomes possible. In addition, by adopting a configuration in which the in-vehicle alarm device 10 performs three types of radio communication of radio waves, light, and sound waves, it is possible to realize a more robust alarm system against radio communication interference.

  In the present embodiment, a function for storing information related to an alarm request received by the in-vehicle alarm device 10 in the storage unit 7, a function for performing imaging by the in-vehicle camera 81, a function for performing notification by the communication device 82, and a sound wave Although the transmitter / receiver 63 has a function of performing wireless communication using sound waves, the in-vehicle alarm device 10 does not have to have all of these functions, and may have a structure of some of these functions. The storage of information in the storage unit 7, the imaging by the in-vehicle camera 81, and the notification by the communication device 82 are not only when an alarm request from another vehicle is received, but the abnormality detection unit 3 detects an abnormality of the own vehicle. You may also go.

(Embodiment 3)
FIG. 7 is a schematic diagram showing a configuration of an alarm system according to Embodiment 3 of the present invention. The alarm system according to Embodiment 3 includes a plurality of vehicles 1a and 1b equipped with an in-vehicle alarm device 10, a monitoring camera 91 installed on the road together with a signal, and a streetlight 92 installed on the road. It consists of

  The monitoring camera 91 has a function of performing wireless communication with the in-vehicle alarm device 10 mounted on the vehicles 1a and 1b. When the monitoring camera 91 receives an alarm request wirelessly transmitted from the in-vehicle alarm device 10 by radio waves, light, sound waves, or the like, the monitoring camera 91 starts imaging and records the captured video. Furthermore, the monitoring camera 91 may be provided with a function of detecting the position or direction of the transmission source of the received alarm request, and may be provided with a rotation mechanism that adjusts the imaging direction toward the detected position or direction. As a result, the vehicles 1a and 1b in which an abnormality has been detected and the surrounding situation can be reliably captured and recorded by the monitoring camera 91.

  The streetlight 92 has a function of performing wireless communication with the in-vehicle alarm device 10 mounted on the vehicles 1a and 1b. When the street light 92 receives an alarm request wirelessly transmitted from the in-vehicle alarm device 10 by radio waves, light, sound waves, or the like, the street light 92 increases the light amount of the light. When the alarm request is received and the street lamp 92 is in the off state, the street light 92 increases the light amount after shifting from the off state to the on state. Thereby, the light quantity of the street lamp 92 installed around the vehicles 1a and 1b in which the abnormality is detected increases, and the surroundings of the vehicles 1a and 1b are brightly illuminated, so that the crime prevention effect can be enhanced.

  In the present embodiment, the alarm system includes the monitoring camera 91 and the streetlight 92. However, it is not necessary to include both of these, and the alarm system includes either the monitoring camera 91 or the streetlight 92. It may be.

1a, 1b Vehicle 2 Battery 3 Abnormality detection unit (abnormality detection means)
4 Alarm section (alarm means)
5 Control unit (transmission means, alarm control means, imaging control means, notification means)
6 Wireless communication unit (communication means)
7 Storage unit (storage means)
10 On-vehicle alarm device (on-vehicle abnormality detection device)
21 Remaining amount detection unit (battery remaining amount detection means)
DESCRIPTION OF SYMBOLS 31 Impact sensor 32 Open / close detection switch 33 Inclination sensor 41 Horn 42 Lamp 61 Radio wave transmission / reception part 62 Optical transmission / reception part 63 Sound wave transmission / reception part 81 Car-mounted camera 82 Communication apparatus 91 Surveillance camera 92 Street light

Claims (14)

An abnormality detection means for detecting an abnormality of the vehicle;
An alarm means for issuing an alarm;
Communication means for performing wireless communication with other devices;
A transmission means for transmitting an alarm request to another device by the communication means when the abnormality detection means detects an abnormality;
An on-vehicle alarm device comprising: an alarm control unit that performs an alarm by the alarm unit when an alarm request is received from another device by the communication unit. The on-vehicle alarm device according to claim 1, wherein the alarm control unit is configured to perform an alarm by the alarm unit when the abnormality detection unit detects an abnormality. The alarm control unit is configured to perform different alarms when an alarm request is received from another device through the communication unit and when the abnormality detection unit detects an abnormality. The on-vehicle alarm device according to 2. 4. The storage device according to claim 1, further comprising a storage unit configured to store date and time information related to the alarm request when the communication unit receives an alarm request from another device. Car alarm system. 5. The apparatus according to claim 1, further comprising an imaging control unit configured to perform imaging with a camera mounted on the vehicle when an alarm request is received from another device by the communication unit. The vehicle-mounted alarm device described in 1. 6. The apparatus according to any one of claims 1 to 5, further comprising notification means for making a notification using a public communication network when an alarm request is received from another device by the communication means. In-vehicle alarm device. The in-vehicle alarm according to any one of claims 1 to 6, wherein the communication unit performs wireless communication with another device using radio waves, light, or sound waves. apparatus. The in-vehicle alarm device according to claim 7, wherein the communication means performs wireless communication with two or more different means. A battery remaining amount detecting means for detecting the remaining amount of the battery mounted on the vehicle;
9. The alarm control unit according to claim 1, wherein when the remaining amount detected by the battery remaining amount detection unit is less than a predetermined amount, the alarm control unit does not perform an alarm. The in-vehicle alarm device according to any one of the above. The abnormality detection means is based on a detection result of an impact sensor for detecting an impact on the window glass of the vehicle, a switch for detecting opening / closing of the door, bonnet or trunk of the vehicle, or an inclination sensor for detecting the tilt of the vehicle. The vehicle-mounted alarm device according to any one of claims 1 to 8, wherein an abnormality of the vehicle is detected. An alarm means for issuing an alarm;
Communication means for performing wireless communication with other devices;
An on-vehicle alarm device comprising: an alarm control unit that performs an alarm by the alarm unit when an alarm request is received from another device by the communication unit. An abnormality detection unit that is mounted on one vehicle and detects an abnormality of the vehicle, a communication unit that performs wireless communication with another device, and an alarm request when the abnormality detection unit detects an abnormality, the communication unit An in-vehicle abnormality detection device having a transmission means for transmitting to another device by:
An alarm means mounted on another vehicle for issuing an alarm, a communication means for performing wireless communication with the in-vehicle abnormality detection device, and the alarm when the alarm request is received from the in-vehicle abnormality detection device by the communication means An alarm system comprising: an on-vehicle alarm device having an alarm control means for performing an alarm by means. A communication unit that is installed on a road and performs wireless communication with the in-vehicle abnormality detection device; and further includes an imaging device that performs imaging when an alarm request is received from the in-vehicle abnormality detection device by the communication unit. The alarm system according to claim 12. It further comprises a streetlight that is installed on the road and that performs wireless communication with the in-vehicle abnormality detection device, and that increases a light amount when an alarm request is received from the in-vehicle abnormality detection device by the communication means. The alarm system according to claim 12 or 13, characterized by the above.

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