JPH02205997A - Taxi robbery prevention device - Google Patents

Abstract

PURPOSE:To prevent a taxi robbery affair by providing a photographing means to photograph a passenger, a sound warning device to inform the existence of the photographing means and a means to keep a photographed picture. CONSTITUTION:When it is detected that the passenger comes into a back seat, it is informed by operating a sound warning device 10 that a taxi robbery prevention device is loaded to take the picture of the passenger. Then, the passenger is photographed automatically by a video camera 8. The photographed picture is kept in a picture memory. A warning executed by the sound warning device 10 gives a sychological pressure to a person who rides on a taxi with an intention of committing a robbery, and operates to make the person give up the plan. Thus, the robbery of the taxi can be prevented from occurring and even when the robbery is unfortunately committed, a criminal can easily be arrested since it is highly possible that the finally photographed person is the criminal.

Description

[Detailed description of the invention]

[Industrial Application Field 1] The present invention prevents the occurrence of taxi robberies by photographing passengers with a television camera and storing the images, and in the event that they occur, it is possible to prevent the occurrence of taxi robberies. This invention relates to a taxi robbery prevention device that facilitates taxi identification. “Prior Art” In conventional taxi robbery cases, the back seat (rear seat)
In most cases, passengers who board a train suddenly attack the driver and steal money. Drivers attacked were often seriously injured or even killed. Therefore, as a taxi robbery prevention device, a transparent bulkhead was installed between the front seat and the back seat of a taxi, or a transparent bulkhead was installed only behind the driver's head. .

[Problem to be solved by the invention]

However, the conventional taxi robbery prevention device described above has the following problems. First, a transparent partition wall is installed between the front and rear seats of a taxi, but this creates a physical barrier that cuts off passengers from beginning to end, causing dissatisfaction on the part of passengers. It has the problem of being large, which is why it has not yet become widely used. Next, a transparent bulkhead is provided only behind the driver's head, but even though the bulkhead is small, it still leaves passengers dissatisfied. Moreover, there were questions about its effectiveness in deterring robberies. SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide a more effective taxi robbery prevention device without using a partition wall.

[Means to solve the problem]

In order to solve the above problems, the taxi robbery prevention device of the present invention includes means for detecting that a passenger has entered an empty rear seat, and a photographing means for photographing the passenger in the rear seat after the detection. , an audio warning device for notifying passengers of the presence of the photographing means, and means for storing images photographed by the ink shadow means.

[For production]

When it detects that a passenger has entered the back seat, it activates an audio warning device to notify the taxi that it is equipped with an anti-robbery device that takes a picture of the passenger, and automatically takes a picture of the passenger. Then, save the captured image. The warning provided by the audio warning device exerts psychological pressure on those who plan to commit a crime and has the effect of dissuading them from committing the crime. This makes it possible to prevent taxi robberies. Also, in the unfortunate event that a crime is committed, there is a high possibility that the last person photographed is the culprit, but even if the driver's memory is unclear, even if the driver is killed. By playing back the images, a wealth of accurate information about the criminal can be obtained. Therefore, arresting the criminal becomes easier.

【Example】

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows an embodiment of the invention. In Figure 1, 1
is the rear seat switch, 2 is the rear door switch, 3 is the fare meter, 4 is the electronic clock, and 5 is the AVM device (Auto
atic Vehicle Monitoring)
, 6 is a control computer, 7 is a lighting lamp, 8 is a television camera, 9 is a light meter, 1o-1 is a voice warning device main body, 1
0-2 is the audio warning device speaker section, 2 is the image memory,
13 is a rear seat, and 14 is a passenger. The rear seat switch 1 is a switch that detects whether or not a person is sitting on the rear seat, and is, for example, a switch that is turned on when a person is seated and turned off when the person is not seated. This ON
, OFF to check whether a passenger has boarded the vehicle. The rear door switch 2 is a switch that detects whether the rear door (rear door) is opened. For example, it turns ON when the rear door is opened.
This is a switch that turns OFF when closed. The AVM device 5 is a terminal device of a system that informs a taxi company where a taxi is currently running. This system is a well-known system adopted by taxi companies to improve their business efficiency. The own military position information is sent by radio from this AVM device 5 to the taxi company. In the present invention, the own military position information generated from the existing AVM device is also used as passenger boarding position information and is saved together with image data. This information will be used to determine the location of the vehicle where the criminal was riding in the event of an incident. The television camera 8 is used to photograph passengers. Since the seating position of the passenger is almost fixed, a fixed-focus camera is sufficient.In addition, when installing it inside the car, it is desirable to install it in a position where the entire rear seat can be photographed (for example, near the room lamp), and to be equipped with a wide-angle lens. . The exposure meter 9 measures the brightness of the subject (passenger) during photographing and adjusts the aperture of the television camera 8. Therefore, it is arranged near the television camera 8. The illumination lamp 7 is a lamp for resolving the lack of illuminance during photographing, and may also be used as a room lamp. If the lighting lamp 7 is used also as a room lamp, it will normally work if the taxi-robbery prevention device of the present invention is deactivated. operates in the same way as a room lamp (i.e.
The light turns on when the door is opened and turns off when the door is closed.) The image memory 12 is for storing images taken by the television camera 8, and can be, for example, a semiconductor RAM backed up by a built-in battery or a video floppy disk for an electronic still camera. Voice warning device main body 10-1 and voice warning device speaker section 1
0-2 constitute an audio warning device (10). The audio warning device is a device that notifies passengers that the taxi is equipped with an anti-robbery device that photographs passengers. The electronic clock 4 provides information on the shooting date, hour, minute, and second to be imprinted on the image data. This information may be built into the control computer 6, and when the image is later analyzed, this information can be used to determine the time the criminal entered the vehicle. FIG. 2 is a block diagram of the present invention. The numbers assigned to the blocks correspond to those in FIG. Further, 11 is an encryption code storage memory. The cryptographic code storage memory 11 is a memory that stores cryptographic codes necessary when reproducing images from the image memory 12. Reproduction becomes possible only when the same code as the stored encryption code is input from the operating terminal of the control computer 6. The reason for this is that in order to protect the privacy of passengers, only a specific person (for example, the manager of a taxi company) can play the video. The encryption code is
It is possible to change it from time to time. When the code is changed, the new code is stored in the code storage memory 11. The control computer 6 includes a rear seat switch 1, a rear door switch 2. Price meter 3. Electronic clock 4. Receives input signal from AVM device 5, lighting lamp 7 television camera 8.
Exposure meter9. Activate the audio warning device 10, etc. It also exchanges data with the encryption code storage memory 11 and the image memory 12. FIG. 3 shows a flowchart for explaining the present invention in detail. Item numbers ``■'' to ``■'' in the explanation of FIG. 3 correspond to steps ``■'' to ``■'' in FIG. ■ Check whether rear seat switch 1 is turned on. If it is ON, it means that there is a passenger, but the photographing etc. of this passenger was done when they got on board. Therefore, as long as this passenger is on board (that is, as long as the rear seat switch 1 is ON), there is no need to repeat the procedure again. So, when it's ON, it just goes round and round the steps and doesn't move forward. If it is OFF, it means that there are no passengers, so there is a possibility that new passengers will board. Therefore, in order to prepare for this, the process proceeds to step (2) in which the operator checks for ``opening the rear door,'' which is an operation performed prior to getting into the vehicle. ■ This step is performed when there are no passengers (in other words, the car is empty).
Then check to see if the rear door has been opened. This check is performed using the rear door switch 2. The opening of the rear door is a sign that passengers are about to board the vehicle. Therefore, at that time, the process proceeds to the next step and starts preparation operations for photographing and the like. ■ Turn on the lighting lamp 7. ■ Turn on the TV camera 8 and make it ready for shooting. ■ Activate exposure meter 9. ■ Adjust the aperture of the television camera 8 based on the measurement results of the exposure meter 9. ■ Whether rear seat switch 1 is turned on, i.e.
Check whether the passenger is seated. ■ Activate the audio warning device IO. That is, a signal stored in advance on a magnetic tape or semiconductor memory in the audio warning device main body 10-1 is transmitted to the audio warning device speaker section 1.
Sent to 0-2. This informs the passengers that this taxi is equipped with a taxi robbery prevention device that photographs the passengers. This warning may deter criminals from carrying out the crime, so it is possible to prevent crimes from occurring. ■ Check whether there is enough room in the image memory 12 to store the photographic data. [Phase] If there is not enough room, designate an area where data that can be deleted out of already stored data is stored as an area to be used for storing new data. If the memory capacity is used up, if the oldest data is to be erased, the new data will be written to the area starting from the area where the oldest data is stored (
It will be designated as an overwrite area). ■ Check whether charge meter 3 is turned on. This check is used to confirm whether the passenger has boarded the taxi and has decided to take the taxi. This is to prevent such passengers from being photographed, as there are cases where passengers sit in the back seat but end up getting out after exchanging stories with the driver. @ The fact that the fare meter 3 has been turned on means that the passengers who boarded the taxi have decided to take the taxi, so a photograph is taken. The image is stored in image memory 12. At this time, time information from the electronic clock 4 and vehicle position information from the AVM device 5 are also stored at the same time. Once the shooting is complete, the equipment needed for the shooting will be deactivated using the following steps. @Turn off the lighting lamp 7. [Phase] Turn off the TV camera 8. ■ Deactivate exposure meter 9. If a taxi is equipped with a robbery prevention device that operates as described above, it will be possible to deter criminals by the psychological pressure of having their face photographed, and if they are seen trying not to be photographed, , taxi robberies can be reduced because drivers can be more alert. In addition, when a crime is started, the last passenger photographed is considered to be a likely suspect, so by replaying the image memory 12 and knowing the passenger's face, time and place of boarding, it is possible to identify the culprit. It can make arrest easier. (Application example) (1) Installation of manual photographing switch In the example described above, photographing is automatically performed by operating the rear seat switch 1 or the like when getting into the vehicle, without any special operation by the driver. Therefore, if the criminal is well aware that the camera will only be photographed when the vehicle is in the vehicle, it is conceivable that the perpetrator will intentionally hide his or her face for a while after getting in the vehicle. Therefore, it is desirable for the driver to be able to photograph such passengers at the appropriate time. Therefore, a manual photographing switch may be separately provided to start the photographing operation when the driver desires to take a photograph. (2) If the culprit is aware of the anti-robbery device in a taxi, which records image data sent to the base station and stores it in the image memory, he may not commit the crime by simply destroying the image memory after the crime. Maybe it's planned. Therefore, instead of storing the photographed image data inside the vehicle, it is immediately transmitted wirelessly to the taxi company's base station, stored in the image storage means provided at the base station, and a warning to that effect is given. By doing so, passengers who board the train with the above idea can be deterred from committing crimes.

【Effect of the invention】

As described above, the taxi robbery prevention device of the present invention provides the following effects. ■ Taxi robberies can be prevented because the psychological pressure of having one's face photographed can deter a person from committing a crime. ■ When a taxi robbery occurs, the saved images can be played back to show information such as the passenger's face9, the time and location of the ride. There is a high possibility that the last passenger photographed is a strong suspect, and as described above, information regarding that passenger can be obtained in abundance and accurately. Therefore, even if the driver's memory is unclear or if the driver is killed, it will be easier to apprehend the culprit.

[Brief explanation of the drawing]

Fig. 1: A diagram showing an embodiment of the present invention Fig. 2: A block diagram of the present invention Fig. 3: A flowchart for explaining the present invention in detail. , 2 is a rear door switch, 3 is a fare meter, 4 is an electronic hour hand, 5 is an AVM device, 6 is a control computer, 7 is a lighting lamp, 8 is a television camera, 9 is a light meter, 10 is a voice warning device, ■ Low 1
10-2 is a voice warning device main body, 10-2 is a speaker section of the voice warning device, 11 is an encryption code storage memory, 12 is an image memory,
13 is a rear seat, and 14 is a passenger. Patent applicant: Patent attorney representing Isuri Motors Co., Ltd.
Tomio Honjo

Claims (1)

[Claims] means for detecting that a passenger has entered an empty rear seat; a photographing means for photographing the passenger in the rear seat after the detection; an audio warning device for notifying the passenger of the presence of the photographing means; A taxi robbery prevention device comprising: means for storing an image taken by the means.