JPH07315168A - Crime preventive system - Google Patents

Abstract

PURPOSE:To carry out an emergency operation even in the case of being unable to operate an emergency button by carrying out emergency information at the time when a signal of a signal detection means is not detected by providing a responder to receive an electric wave of a transmission means, convert it to electric energy and transmit the signal by its electric force and detecting the signal from the responder by a receiving means. CONSTITUTION:A transceiver 13 is constituted of a microcomputer 14, a transmitter 15, a receiver 16 and a transmission reception switching circuit 17. The transmitter 15 receives an ID code signal from a responder 11 from an antenna 12 when a signal from the microcomputer 14 is input (the transmission reception switching circuit is in a transmission state), outputs it to the microcomputer 14 and dispatches an alarm by an alarm device 18. Additionally, when an engine stop commanding signal is input from the microcomputer 14, an engine stop device 19 stops supply of fuel. In the meantime, an information commanding signal is output to a wireless device 21, and an emergency is informed to a base station controlling a vehicle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention reports the occurrence of an abnormal situation such as robbing of a vehicle, which may occur during the transportation of cash, valuables, etc. by a vehicle, and controls the running of the vehicle such as stopping the engine. The present invention relates to a crime prevention system, and more particularly, to a crime prevention system for performing vehicle travel restraint control such as notification and engine stop without the operation of crew members.

[0002]

2. Description of the Related Art Conventionally, for example, in a cash transport vehicle, a crew member operates an emergency button to manage a vehicle by using a wireless device mounted on the vehicle as a measure for an abnormality such as robbing of the vehicle. A method was used to report an emergency to the base station to stop the engine of the vehicle.

In addition, when a crew member detects an abnormal situation, a method of activating an alarm device provided in a vehicle or stopping an engine of the vehicle by remote control using a portable wireless device has been adopted. .

[0004]

In the above-mentioned prior art,
The operation of operating the emergency button by the flight attendant may be considered as a suspicious operation by the criminal and may be harmful, and it may be impossible to operate the emergency button or the portable wireless device. Furthermore, in the case of a portable wireless device, maintenance of a power source such as a battery is also necessary.

[0005]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems, and in a crime prevention system for reporting an emergency situation of a guard vehicle, transmitting means for transmitting radio waves and receiving the radio waves. The transponder that converts the electric energy into a power source and transmits a predetermined signal with the power of the power source, a receiving unit that receives a signal from the transponder, and the predetermined signal is detected from the reception signal of the receiving unit. And a emergency notification means for making an emergency call when the predetermined signal is not detected by the signal detection means.

Further, in a crime prevention system for controlling traveling of an alarming vehicle in case of an emergency, transmitting means for transmitting an electric wave and the electric wave is received and converted into electric energy to be used as a power source. A transponder that transmits a predetermined signal, a receiving unit that receives a signal from the transponder, a signal detecting unit that detects the predetermined signal from a reception signal of the receiving unit, and the predetermined signal is detected by the signal detecting unit When the vehicle is not driven, the vehicle is provided with a travel inhibiting means for performing travel inhibition control of the vehicle.

[0007]

The communication area between the transponder, the transmitter and the receiver is limited, and the transponder cannot receive the signal from the transmitter unless the transponder of the security system is near the transmitter. Therefore, for example, when a crew member carries a transponder and installs a transmitter, a receiver, a signal detection device, and an emergency notification device in the vehicle, when the crew member moves away from the vehicle, the signal detection device is provided with a predetermined response from the transponder. The signal cannot be detected and the emergency call device makes an emergency call. Alternatively, the travel restraint device performs travel restraint control of the vehicle. .

[0008]

FIG. 1 is a block diagram of a security system for both reporting an emergency and stopping an engine as an embodiment of the present invention.
FIG. 2 is a diagram showing the transmission / reception state of the transceiver 13.
The answering machine 11 is incorporated in a name tag of a crew member and transmits a unique ID code signal when receiving a signal from the transceiver 13, and uses a transponder which has a very narrow communication area but does not require a power source. Details of the transponder 11 will be described later. The antenna 12, the transceiver 13, the alarm device 18, the engine stop device 19, and the wireless device 21 are attached to the vehicle, and the antenna 12 is the transceiver 13
Signal is transmitted at the timing shown in FIG.
Receive the ID code signal from. The transceiver 13 includes a microcomputer 14, a transmitter 15, a receiver 16 and a transmission / reception switching circuit 17.

The microcomputer 14 uses a predetermined time (T
1 and T2), a transmission / reception switching command signal for switching the transmission / reception state of the transmission / reception switching circuit 17 is output to the transmission / reception switching circuit 17. Further, the microcomputer 14 outputs a transmission / reception switching command signal for switching the transmission / reception switching circuit 17 to the transmission state to the transmission / reception switching circuit 17, and at the same time outputs a transmission command signal to the transmitter 15. In the microcomputer 14, the receiver 16 is the responder 1
IDs 1 to 1 for storing ID code signals in the memory
When the engine stop device 1 compares the D code with the alarm command signal for issuing an alarm to the alarm device 18 when they do not match.
An engine stop command signal for stopping the engine is output to 9 and a report command signal for notifying the base station 20 of the emergency to the wireless device 21 is output.

When the transmission command signal is input from the microcomputer 14 (transmission / reception switching circuit 17 is in the transmission state), the transmitter 15 transmits a signal from the antenna 12 to the transponder 1 at the timing shown in FIG.
Send to 1. The receiver 16 receives the ID code signal from the transponder 11 via the antenna 12 and outputs the ID code signal to the microcomputer 14 when the transmission / reception switching circuit 17 is in the reception state. The transmission / reception switching circuit 17 switches the transmission / reception state of the transceiver 13, and controls the transmission / reception state of the transceiver 13 according to a transmission / reception switching command signal from the microcomputer 14 (antenna 12, transmitter 15, and receiver 16).
Control the switching of the connection state with).

The alarm device 18 issues an alarm when an alarm command signal is input from the microcomputer 14, and a siren for issuing an alarm, a warning lamp for emitting an alarm light, etc. are used. The engine stop device 19 stops an engine (not shown) when an engine stop command signal is input from the microcomputer 14, and the fuel supply is stopped.
A configuration is used in which the power supply to the ignition system of the engine is stopped. When a notification command signal is input from the microcomputer 14, the wireless device 21 receives the base station 2 via the antenna 22.
0 is used to report an emergency, and a commercial radio or the like is used. The wireless device 21 also receives a signal from the base station 20.

Next, the processing performed by the microcomputer 14 will be described with reference to FIG. FIG. 3 is a flowchart showing the processing of the microcomputer 14. The process is started when an activation switch (not shown) of the security system is operated. In step S1, each control device is initialized, or the memory and interface are initialized, and the process proceeds to step S2. In step S2, a transmission / reception switching command signal is output to the transmission / reception switching circuit 17 to put the transmission / reception switching circuit 17 in the transmission state. Then, a transmission command signal is output to the transmitter 15,
The transmitter 15 is caused to output a signal, and the process proceeds to step S3. In step S3, it is detected whether a fixed time (T1 shown in FIG. 2) has elapsed, step S3 is repeated until the fixed time elapses, and when the fixed time elapses, the process proceeds to step S4.

In step S4, a transmission / reception switching command signal is output to the transmission / reception switching circuit 17 to put the transmission / reception switching circuit 17 in a receiving state, and the process proceeds to step S5. In step S5, it is detected whether a fixed time (T2 shown in FIG. 2) has elapsed, step S5 is repeated until the fixed time elapses, and when the fixed time elapses, the process proceeds to step S6. In step S6, the receiver 16 determines whether the ID code signal from the responder 11 matches the identification ID code stored in the memory. (Including when the ID code signal is not received)
Moves to step S7. In order to prevent malfunction, it is desirable to move to step S7 when there is an abnormality for a certain period of time or when the ID codes do not match continuously for a certain number of times or more. In other words, the crew members are
(In the communicable area of 1), steps S2 to S6 are repeated. It should be noted that the ID code coincidence determination prevents a malfunction due to the presence of a responder corresponding to another vehicle.

In step S7, a report command signal is output to the wireless device 21, the base station 20 that manages the vehicle is notified of the emergency, and the process proceeds to step S8. In step S8,
An alarm command signal is output to the alarm device 18 to generate an alarm in the alarm device 18, and the process proceeds to step S9. In step S9, an engine stop command signal is output to the engine stop device to stop the engine (not shown), and the process proceeds to step S10. In step S10, it is detected whether a specific release operation (release switch operation, reception of a release signal from the base station 20, etc.) is performed, and step S1 is performed until the release operation is performed.
When 0 is repeated and it is detected that the release operation is performed, the process proceeds to step S11.

In step S11, a release signal is output to the wireless device 21, a signal indicating that the emergency has been released is transmitted to the base station 20, and the process proceeds to step S12. In step S12, an alarm cancellation signal is output to the alarm device 19, the alarm is stopped, and the process proceeds to step S13. In step S13, an engine stop release signal is output to the engine stop device 19 to release the stop of the engine, and the process proceeds to step S2.

That is, when the crew member is in the vehicle, the transponder 11 responds to the ID transmission in response to the signal transmitted from the transceiver 13.
The code signal is transmitted to the transceiver 13. Therefore, the microcomputer 14 sends the ID code signal from the responder 11 to the receiver 1
6, the base station 20 is not notified of the emergency, and the alarm device 18, the engine stop device 19, and the wireless device 21 are not activated. When the crew member is taken out of the vehicle due to robbing of the vehicle or the like, even if the signal is transmitted from the transceiver 13, the response machine 11 is out of the communicable area, so the response machine 11 receives the signal from the transceiver 13. Since it becomes impossible, the transponder 11 stops transmitting the ID code signal, or even if the transponder 11 transmits the ID code signal, the transceiver 13 cannot receive the ID code. Therefore, the microcomputer 14 cannot detect the ID code signal from the transponder 11, and therefore notifies the base station 20 of the emergency via the wireless device 21 and activates the alarm device 18 and the engine stop device 19. In the present embodiment, the engine stop device that stops the engine is used as the travel control inhibiting means, but a control device that performs control to always apply a brake, control the transmission and the clutch so that the vehicle cannot travel, and the like is used. Good.

Next, the details of the transponder 11 will be described with reference to FIG. FIG. 4 is a configuration diagram of the transponder 11. Answering machine 1
1 comprises an antenna 41, a transmission / reception switching circuit 42, a control circuit 43, an ID generator 44, a diode D, and a capacitor C. The antenna 41 is composed of a ferrite bar antenna and has a characteristic that the signal from the transceiver 13 can be received well (the resonance frequency is substantially the same as the transmission frequency of the transceiver 13), and the signal from the transceiver 13 is received. In addition, the ID code signal is transmitted. The transmission / reception switching circuit 42 is normally in the reception state, and the transmission / reception switching command signal from the control circuit 43 causes the antenna 41 to switch to the transmission state for a predetermined time. The control circuit 43 outputs a transmission / reception switching command signal to the transmission / reception switching circuit 42 when the antenna 41 receives a signal from the transceiver 13 for a predetermined time. When the antenna 41 receives the signal from the transceiver 13 for a predetermined time (when the transmission / reception switching circuit 42 switches to the transmission state), the ID generator 44 generates a unique ID code signal, and transmits the signal via the transmission / reception switching circuit 42. , The unique ID code signal to the antenna 41
Send from

Next, the operation of the transponder 11 will be described. Normally, the transmission / reception switching circuit 42 is in a reception state, and when the antenna 41 receives a signal from the transceiver 13, it outputs this reception signal. Only the signal on the positive side of the received signal is applied to the capacitor C by the diode D, and the capacitor C is charged to serve as a power source. When the charging voltage of the capacitor C exceeds a predetermined voltage value, the control circuit 43 and the ID generator 44 start operating, the control circuit 43 outputs a switching command signal to the transmission / reception switching circuit 42, and the transmission / reception switching circuit 42 is transmitted. Put in a state. The ID generator 44 also generates a unique ID code signal,
The ID code signal is transmitted from the antenna 41 via the transmission / reception switching circuit 42. When the transmission / reception switching circuit 42 switches to the transmission state, the signal from the transceiver 13 cannot be received, the power charged in the capacitor C decreases, and the transmission / reception switching circuit 42 switches to the reception state and the ID generator 4
4 stops outputting the ID code signal and returns to the original receiving state.

As described above, according to this embodiment,
A crew member who carries the answering machine 11 only needs to go out of the communicable area of the answering machine 11 to notify the base station 20 that automatically manages the vehicle, via the wireless device 21, of an emergency situation and an alarm device. It is possible to operate 18 to give an alarm, or to operate the engine stop device 19 to stop the engine. Further, since the transponder 11 converts a signal from the transceiver into electric energy and uses it as a power source, maintenance of the power source such as a battery is unnecessary.

[0020]

As described in detail above, according to the present invention, for example, when a crew member having an answering machine moves away from a vehicle, an emergency situation is notified to a base station that automatically manages the vehicle. Since an alarm is issued and the engine stop device stops the engine, the crew does not operate the emergency button by themselves, and the possibility of harm is reduced. Further, even when the crew cannot operate the emergency button or the portable wireless device, it is possible to notify the base station of an emergency and the engine stop device can stop the engine.
Further, since the transponder does not need a power source, maintenance of batteries and the like is unnecessary.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing a transmission / reception state of a transceiver 13.

FIG. 3 is a flowchart showing the processing of the microcomputer 14.

FIG. 4 is a configuration diagram of a responder 11.

[Explanation of symbols]

 11 ... Responder 12, 22, 41 ... Antenna 13 ... Transceiver 14 ... Microcomputer 15 ... Transmitter 16 ... Receiver 17, 42 ... Transmit / receive switching circuit 18 ...・ Notification device 19 ・ ・ ・ Engine stop device 43 ・ ・ ・ Control circuit 44 ・ ・ ・ ID generator

Claims (2)

[Claims] 1. A crime prevention system for reporting an emergency situation of a guard vehicle, transmitting means for transmitting radio waves, receiving the radio waves, converting the radio waves into electric energy to use as a power source, and transmitting a predetermined signal with the power of the power source. An answering machine, a receiving means for receiving a signal from the answering machine, a signal detecting means for detecting the predetermined signal from the received signal of the receiving means, and an emergency when the predetermined signal is not detected by the signal detecting means, A crime prevention system characterized by having an emergency call means for making a call. 2. A crime prevention system for controlling traveling of an alarming vehicle in case of an emergency, the transmitting means transmitting an electric wave, receiving the electric wave, converting the electric wave into an electric power source, and using the electric power of the power source. A transponder that transmits a predetermined signal, a receiving unit that receives a signal from the transponder, a signal detection unit that detects the predetermined signal from a reception signal of the reception unit, and the predetermined signal is detected by the signal detection unit A crime prevention system, comprising: a travel restraint means for controlling travel restraint of the vehicle when not being performed.