JP2005170258A - Vehicle-mounted monitoring camera system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle-mounted monitoring system capable using image information as proof sources for verification. <P>SOLUTION: This system comprises a camera part and a main body. The camera part has an electronic camera periodically fetching images, a shock sensor converting shocks at the time of collision into electric signals, and a vibration sensor converting upward and downward vibrations into electric signals. The main body has an image input part connected with a personal computer and the camera part and fetching the image signals from the electronic camera, a image recording part storing the image signals and acting conditions of the camera part, an ON/OFF signal input/output part receiving signals from the shock sensor and the signals from a vibration sensor and outputting them to the image recording part as the acting conditions of the camera part, and an image output part transferring the image signals of the image recording part and the acting conditions of the camera part to the personal computer. The personal computer has an image fetching part fetching the image signals and the acting conditions of the camera part, and an image storing part recording and storing the image signals and the acting conditions of the camera part. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an in-vehicle surveillance camera system, and more specifically, in order to accurately understand a vehicle situation before and after a vehicle accident and a traffic control situation to enable analysis of the cause of the accident and verification of evidence materials, The present invention relates to an in-vehicle surveillance camera system that stores situation image data and vehicle driving situation data from each sensor in a storage element.

As a means to accurately understand the vehicle situation before and after the vehicle accident and the traffic control situation to analyze the cause of the accident and verify the evidence, the image data of the driving surroundings by the CCD camera and the vehicle driving from each sensor Various in-vehicle surveillance camera devices that store status data in a storage element have been developed.
As such an in-vehicle monitoring camera device, for example, Patent Document 1 discloses a storage prohibition unit that continues to store even after a vehicle accident until a predetermined condition, a canceling unit for the prohibition of storage, and a memory other than an accident. An in-vehicle surveillance camera system having a function switching switch that can be used is described.

  However, according to the above-described conventional technology, since it cannot be transferred to another analyzing means, it is impossible to analyze the vehicle accident or traffic violation situation in detail. In addition, the captured image information and camera operating status can only be printed on paper or carried around the device itself, and could not be compactly compiled as electronic data. It was insufficient. In addition, since parking was not planned, it could not be used for crime prevention.

JP 2000-128030 A

  The present invention solves the above-described problems, can analyze vehicle accidents and traffic violation situations in detail, and can collect image information and camera operation status as verification documentation. At the same time, it is intended to provide an in-vehicle monitoring system effective for crime prevention measures at the time of parking.

The present invention according to claim 1 includes a camera unit that can be mounted on a vehicle, a main body unit, and a personal computer. The camera unit detects an impact at the time of a collision, an electronic camera that periodically acquires images and converts them into image signals. , An impact sensor that converts this into an electrical signal, a vibration sensor that senses vertical vibration and converts this into an electrical signal, and the main body can be connected to a personal computer and a camera by wire or wireless, and an electronic camera An image input unit for acquiring an image signal from the image recording unit, an image recording unit for storing the image signal and an operation state of the camera unit, an electrical signal from the impact sensor and an electrical signal from the vibration sensor, and the image recording unit An ON / OFF signal input / output unit that outputs the operation status of the camera unit, and an image output unit for transferring the image signal recorded in the image recording unit and the operation status of the camera unit to a personal computer Have,
The personal computer includes an image acquisition unit that acquires an image signal and an operation state of the camera unit, an image editing unit that edits the image signal and the operation state of the camera unit, an image signal edited by the image editing unit, and an operation of the camera unit It is an object of the present invention to provide an in-vehicle surveillance camera system having an image storage unit for recording and storing a situation.

In this case, as described in claim 2, the image recording unit can store the image signal and the operation status of the camera unit A in a certain number of frames in the order of the recording time. It is preferable to overwrite and save from the eyes.
According to a third aspect of the present invention, it is preferable that the image recording unit stops recording at a sensing time when an electrical signal is output from the impact sensor from the ON / OFF signal input / output unit.
According to a fourth aspect of the present invention, when an electrical signal is output from the vibration sensor from the ON / OFF signal input / output unit, the image recording unit stops or stops the vehicle from the frequency of the electrical signal. Judging, it is preferable to shorten the recording interval of the image signal during traveling and to increase the recording interval during stoppage.

On the other hand, as described in claim 5, the camera unit further includes an input unit that performs a manual operation to stop and / or start the operation of the camera unit and convert the stop and / or start to an electrical signal. In addition, it is preferable that the ON / OFF signal input / output unit of the main body unit further receives an electrical signal from the input unit and outputs an operation state to the image recording unit.
In this case, it is preferable that the image recording unit stops the recording at the sensing time when the electric signal from the input unit is output from the ON / OFF signal input / output unit.

According to a seventh aspect of the present invention, the image output unit records the image recorded in the image recording unit when the electric signal from the impact sensor or the input signal is received by the ON / OFF signal input / output unit of the main unit. It is preferable to transfer the signal and the operating status of the camera unit to a personal computer.
In this case, as described in claim 8, it is preferable that the image editing unit rearranges the image signal acquired by the image acquisition unit and the operation state of the camera unit in accordance with the recording time.
In addition, as described in claim 9, the ON / OFF signal input / output unit can adjust the shooting interval of the electronic camera, which can take a long shooting interval while stopping and can set a short shooting interval while traveling. With a timer,
The image recording unit preferably records the shooting interval set by the timer as the operation status of the camera unit.
According to a tenth aspect of the present invention, the camera unit further includes an operation state display unit that displays an operation state of the camera unit, and the ON / OFF signal input / output unit of the camera unit further includes an image recording unit. It is preferable to input an ON / OFF signal in accordance with the stop and / or start of recording by.
On the other hand, as described in claim 11, the electronic camera of the camera unit is composed of two or more cameras, and the image recording unit of the main body unit stores the image signal and the operation status of the camera unit for each electronic camera. Is preferably characterized.

According to a twelfth aspect of the present invention, the camera unit includes a moving body sensor that detects an intruder during parking and converts the intruder into an electric signal, and a warning device that warns the intruder when there is an intruder during parking. In addition, it is preferable that the ON / OFF signal input / output unit of the main body unit further receives an electric signal from the moving body sensor and outputs an operation state to the image recording unit. In addition, as described in claim 13, it is preferable that the camera unit is equipped with a lens hood.
In this case, as described in claim 14, it is preferable that the image recording unit starts recording when an electric signal is output from the moving body sensor from the ON / OFF signal input / output unit.
In addition, as described in claim 15, the warning device is preferably a flashlight and / or a buzzer.

And as described in Claim 16, it is preferable that a main-body part is further provided with the power supply part which supplies a power supply from the cigarette socket in a vehicle to a camera part and a main-body part.
In this case, as described in claim 17, the main body unit senses whether there is a built-in battery that supplies power when power supply from the power supply unit is stopped, and whether power is supplied from the power supply unit. It is preferable to further include a power supply sensor for switching to the supply from the built-in battery when the supply of the battery is stopped.

  According to the present invention, vehicle accidents and traffic violation situations can be analyzed in detail, and image information and camera operation status can be compiled as evidence for verification, as well as security measures during parking. An effective in-vehicle monitoring system is provided.

Hereinafter, in order to clarify the present invention, its configuration will be described with reference to the drawings.
FIG. 1 is a block diagram showing an embodiment of an in-vehicle monitoring camera system according to the present invention. This embodiment includes a camera unit A, a main unit B, and a personal computer C. The main unit B is connected to the camera unit A and a personal computer (in the present invention, including a computer as a personal computer) C by wire. .
The camera unit A includes an electronic camera 11, an impact sensor 12, an operation state display unit 13, a vibration sensor 14, an input unit 15, a reset unit 16, a moving body sensor 17, and a warning device 18.
The main unit B includes an image input unit 21, an image recording unit 23, an ON / OFF signal input / output unit 24, a control unit 25, an image output unit 26, a backup power supply unit 27, a power supply unit 28, a built-in battery 29, and a power sensor. 210.
Furthermore, the personal computer C includes an image acquisition unit 31, an image editing unit 32, and an image storage unit 33.

In FIG. 2, the example of the vehicle-mounted monitoring system of this embodiment is shown. In this way, by connecting the main body B to the personal computer C, an image can be transmitted to the personal computer C, and an image in the vehicle such as a driver's side-by-side driving state or a sleeping driving state can be analyzed. In FIG. 2, the connection between the main unit B and the personal computer C is wired by a cord, but can be performed wirelessly using a network such as the Internet.
FIG. 3 shows an example in which the camera part A and the main part B are mounted in the vehicle. As shown in FIG. 3A, the camera unit A can derive an in-vehicle image by being attached to the in-vehicle sun visor 41. Moreover, although the main-body part B can be attached to the lower part of the driver's seat or the passenger's seat 42, it is preferable to install in other parts also in the position which is not damaged even if an accident occurs. 2 and 3 show a state in which the camera part A and the main body part B are separated from each other. However, both of them are downsized, and the main body part B is accommodated in the camera part A and integrated. You can also.

The electronic camera 11 is a camera that can periodically acquire an image in the vehicle and convert it into an image signal. For example, the electronic camera 11 refers to a CCD camera or the like, and can include not only one but also two or more. The image signal may be any signal that can be sent to the image input unit 21 of the main body B, and examples thereof include digital data. In this case, it is preferable that the electronic camera 11 has built-in image signal conversion software such as an A / D converter that converts an analog image into digital data. The lens of the electronic camera 11 is preferably a wide-angle lens because an image signal in a wider range can be acquired.
Further, as shown in FIG. 3B, by attaching a lens hood to the lens portion of the electronic camera 11, it is possible to prevent halation caused by the sun or the like entering the field of view of the lens. Thereby, the image acquisition of the direction of the sun can be performed clearly at the time of fine weather.

The impact sensor 12 detects an impact at the time of a collision, that is, a vehicle shake in the front-rear direction, and converts it into an electric signal (stop signal).
The operation state display unit 13 can be provided to display the operation state of the camera unit A such as a power source or during image recording. For example, the operation state display unit 13 can be a lamp that is turned on during operation and is turned off during operation stop. .
The vibration sensor 14 senses vertical vibrations and converts them into electrical signals. As will be described later, this electric signal is used to determine whether the vehicle is running or stopped in the image storage unit 23 of the main body.

The input unit 15 stops and / or starts the operation of the camera unit A by manual operation, and converts the stop and / or start into an electric signal (stop signal and / or start signal). It can be a switch.
The reset unit 16 is for resetting the image recorded by the image recording unit 23. For example, the reset unit 16 can be a reset button that can be reset when pressed.

The moving body sensor 17 detects an intruder during parking and converts it into an electrical signal.
The warning device 18 warns against an intruder when parking, and may be, for example, a flashlight 18a, a buzzer 18b, or the like.
These moving body sensor 17 and warning device 18 function in the crime prevention mode as will be described later.

  The image input unit 21 is used to acquire an image signal from the electronic camera 11 and an operation state of the camera unit A. For example, a known video chip can be used.

The image recording unit 23 is a so-called memory for storing the image signal and the operation status of the camera unit A. It is preferable that a plurality of image signals can be stored, and it is preferable that a certain number of frames can be recorded. In addition, when the electrical signal from the vibration sensor 14 is output from the ON / OFF signal input / output unit 24, the image recording unit 23 determines whether the vehicle is running or stopped from the frequency of the electrical signal, and It is preferable to shorten the recording interval of the image signal and to increase the recording interval during the stop. Further, as will be described later, when an electrical signal is output from the impact sensor 12 or the input unit 15 from the ON / OFF signal input / output unit 24, the image recording unit 23 may stop recording at the sensing time. preferable. Furthermore, it is preferable to start recording when an electrical signal is output from the moving body sensor from the ON / OFF signal input / output unit 24.
In addition, it is preferable that information that is rewritten every time the image is taken out of the image signal and the operation status of the camera unit A is stored separately from the common information, so that memory can be saved.
When the reset unit 16 (reset button) is provided in the camera unit, the image recording unit 23 resets all recorded images when the reset button is pressed.

An example of the image recording unit 23 is shown in FIG. The image recording unit 23 shown in FIG. 4 includes a common memory for storing the operation status of the camera unit A and an image memory for recording an image signal.
In the common memory, the operation status of the camera unit A, such as the current recording position, current date, current time, recording signal, recording interval (running), recording interval (stopped), each frame running / stopping status, etc. To be recorded.
As the current recording position, the currently recorded position (frame numbers 1 to n) is stored.
The current date stores the current recording date, and the current time stores the current recording time.
In the recording signal, for example, “0” is stopped, “1” is recording, and the presence / absence of the current recording is stored.
The recording interval (during traveling) and the recording interval (during stopping) are respectively the recording intervals (frame and frame) when the traveling timer provided in the ON / OFF signal input / output unit 24 described later is running. Is stored in the ON / OFF signal input / output unit 24, which will be described later, when the stop timer is in operation. Whether the vehicle is running or stopped is determined from the frequency of the electrical signal from the vibration sensor 14 output from the ON / OFF signal input / output unit 24 described later.
When an electrical signal (stop signal) is received from the impact sensor 12 or the input unit (stop position X), the recording stops and the recording signal is “OFF”.
These contents are automatically rewritten as necessary when an image signal from the electronic camera 11 is acquired.

On the other hand, the image memory can store a certain number of frames (n) in order of recording time for each of a plurality of cameras, and when the last frame (n) is recorded, the first frame is stored again. Save over from. As shown in FIG. 4, when two or more electronic cameras are installed, image signals periodically captured by the electronic camera 11 of the camera unit A are displayed for each camera in the first frame, the second frame, and the third frame. When the nth frame (the last frame of all the recorded images) is reached, the first frame is recorded again. In this case, the overwriting is performed.
In addition, when an electrical signal is received from the moving body sensor, an image is basically recorded by the same method. In this case, the recording interval can be set separately. In order to prompt the user to make a warning, it is preferable to continue recording unless the user stops recording.

The ON / OFF signal input / output unit 24 receives the electrical signal from the impact sensor 12 and the electrical signal from the vibration sensor 14 and outputs them to the image recording unit 23 as the operation status of the camera unit.
Further, it is preferable that the ON / OFF signal input / output unit 24 further receives an electrical signal from the input unit 15 and outputs an operation state to the image recording unit 23. Furthermore, it is preferable to input an ON / OFF signal in accordance with the stop and / or start of recording by the image recording unit 23. And it is preferable to receive the electric signal from the moving body sensor 17 and to output an operation condition to the said image recording part.
Such an ON / OFF signal input / output unit 24 can use an I / O chip or the like.

Here, an example of a recording format when the image recording unit 23 receives an electric signal from the impact sensor 12 or an input signal is shown in FIG.
When receiving an electrical signal (stop signal) from the ON / OFF signal input / output unit 24, the image memory stops recording at the sensing time (X). The recording may be stopped after several times from the sensing time as required by the user.
At the same time, the current recording position of the common memory is rewritten to “stop position = X”, and the recording signal is rewritten to “OFF”.
When recording is stopped, it is preferable in terms of power saving that the control unit 25 stops photographing of the electronic camera 11 by stopping power supply to the camera unit.

Further, when the ON / OFF signal input / output unit 24 receives the electrical signal from the vibration sensor 14, the ON / OFF signal input / output unit 24 determines whether the vehicle is stopped or traveling from the frequency. Specifically, it is determined that the vehicle is traveling when the frequency is short, and is stopped when the frequency is long. Here, since it is considered that there is not much change during the stop, the ON / OFF signal input / output unit 24 takes a long shooting interval during the stop, while setting a short shooting interval during the run. It is preferable that an electronic camera photographing interval adjustment timer (stop timer and running timer) that can perform the above is provided. Here, of the electronic camera shooting interval adjustment timer, the running timer may be adjusted to a uniform shooting interval when a certain frequency (running vibration) is exceeded, but the higher the frequency, the longer the shooting interval. It may be one that can be shortened.
The shooting interval set by the timer is preferably recorded in the image recording unit as the operation status of the camera unit.

  The image output unit 26 transfers the image signal recorded in the image recording unit 23 and the operation status of the camera unit A to the personal computer C.

The control unit 25 performs overall control of the camera unit A and the main unit B. That is, input control of the image signal by the image input unit 21, recording control of the image signal and the operation state of the camera unit A by the image recording unit 23, operation control of the camera unit A by the ON / OFF signal input / output unit 24, image output unit 26 performs control such as transfer control to the personal computer C.
The backup power supply unit 27 is a power supply for holding the operation state and image information even when the power is turned off, and a known battery, for example, can be used.
The power supply unit 28 is for supplying power to the main unit B and the camera unit A. For example, by connecting to a cigarette lighter socket as shown in FIGS. .
The built-in battery 29 is a monitoring power source for parking when power is supplied from the power source unit. That is, when the power supply unit 28 is a cigarette lighter socket, the power supply will be lost if the key is removed during parking, so that if you want to take security measures when parking, you will secure the power and start up the crime prevention mode. .
The power sensor 210 is a sensor for detecting the presence or absence of power supply from the power supply unit 28 and switching to supply from the built-in battery 29 when supply from the power supply unit stops. When the power sensor detects the presence or absence of power supply (that is, during the waiting time until the security mode is activated or during the grace period until the warning in the security mode), the interval timer is activated as described later. May be.

  The image acquisition unit 31 of the personal computer C acquires the image signal and the operation status of the camera unit.

The image editing unit 32 edits the image signal and the operation status of the camera unit. When the ON / OFF signal input / output unit 24 receives an electrical signal (stop signal) from the impact sensor 12, the input unit, or the moving body sensor, the operation status of the image signal and the camera unit A is from the sensing time to the recording stop part. However, there are cases where the recording order is not necessarily the order according to the recording time. Therefore, the image editing unit 32 preferably rearranges the image signal acquired by the image acquisition unit 31 and the operation status of the camera unit A according to the recording time.
For example, as shown in FIG. 6, when the image editing unit 32 is capable of storing a constant image signal and the operation status of the camera unit A in a certain number of frames in order of recording time, and recording up to the last frame (n frames). Also, in the case of taking the form of overwriting and saving from the first frame, if the recording is stopped at the sensing time of the electrical signal (stop signal), the image output unit will display the image information up to the recording stop position (X) and the camera unit A. In addition to the operation status, the image information not yet overwritten and the operation status (X + 1 to n) of the camera unit A, that is, the image before the first frame) are recorded. That is, if this is transferred as it is, it will not be in the order of recording time. Therefore, by rearranging the image information of X + 1 to n frames and the operation status of the camera unit A so as to come before 1 to X frames, the user can The image information rearranged according to the recording time and the operation status of the camera unit A can be viewed.
In the rearrangement, after the image information is first rearranged as shown in FIG. 6, the operation state of the camera unit can be rearranged, and the image information and the operation state of the camera unit A can be rearranged at the same time.

  The image accumulating unit 33 is a memory that records and accumulates image signals and operation statuses of the camera unit.

The personal computer C preferably further includes software or the like for reproducing an image as a display.
Such a personal computer C further includes a storage medium driver such as FD, CD-ROM, MO, etc. for storing the memory contents of the memory, and a control unit for controlling the functions of the personal computer C as a whole. A display connected to a display, a mouse, a keyboard, a printer or the like for confirming the image can be used.

Hereinafter, the operation flow of the vehicle-mounted monitoring camera system of the present embodiment will be described based on FIG.
First, when the power supply unit 28 secures a power supply in the vehicle using a cigarette light socket or the like, the in-vehicle monitoring camera system 1 starts to operate. When the ON / OFF signal input / output unit 24 has not received an electrical signal (stop signal) from the impact sensor 12 or the input unit 15 (No in step 101), the lamp of the operation state display unit 13 is lit (step 102). ), The image input unit 21 acquires an image signal from the electronic camera 11 (step 103), and the image recording unit 23 stores the image signal and the operation status of the camera unit A (step 104), and updates the recording information. (Step 105). Here, when the impact sensor 12 detects an impact (Yes in Step 106), the lamp of the operation state display unit 13 is turned off (Step 107), and an electrical signal (stop signal) is sent to the ON / OFF input / output unit. (Step 108). When an image transfer command is issued from the ON / OFF input / output unit to the image recording unit 23 (Yes in Step 109), the recorded image is transferred to the personal computer C (Step 110). On the other hand, when the image transfer command is not issued from the ON / OFF input / output unit (No in Step 109), the process proceeds to Step 111 as it is.
Next, when the reset button is pressed (Yes in step 111), the image recorded in the image recording unit 23 is reset. On the other hand, if the reset button is not pressed (No in step 111), the image recorded in the image recording unit 23 remains as it is and proceeds to step 113.
When the input switch of the input unit 15 is pressed and an input start signal is issued (Yes in step 113), the stop signal is canceled (step 114), and the process returns to step 1. On the other hand, if the input switch is not pressed, the process returns to step 109.
As described above, since the image is transferred to the personal computer C, the memory from the occurrence of the accident to the stop remains and can be used for analyzing the vehicle driving situation.
On the other hand, if the impact sensor 12 does not sense an impact (No in step 106), and if the input switch is not turned off (No in step 1061), the electrical signal from the vibration sensor 14 received by the ON / OFF input / output unit is not received. When the ON / OFF signal input / output unit 24 senses a certain frequency (running vibration) from the frequency (Yes in Step 1062), the running timer is activated to take a picture at a short interval (Step 1063). Return to 103. On the other hand, when the image storage unit 23 does not detect a certain frequency (running vibration) (No in Step 1062), the stop timer operates to take a picture at a long interval (Step 1063 ′), and the process proceeds to Step 1064. .
If the input switch is turned on (No in step 1061), the process proceeds to step 107.
Subsequently, when the power supply sensor 210 senses that the power supply from the cigarette lighter socket has stopped (Yes in Step 1064), the process returns to Step 103, but if not sensed (No in Step 1064), the image recording is not performed. It stops (step 1065) and the interval timer (1) is activated during the waiting time until the security mode is activated (step 1066). For example, it is about the time (tens of seconds) until the user removes the key and gets out of the vehicle.
Next, when the motion sensor 17 detects an intruder (Yes in Step 1067), the interval timer (2) is in a grace period until the warning (for example, the time until the user enters the vehicle and inserts the key, The ON / OFF signal input / output unit 24 receives an electrical signal from the moving body sensor 17 and outputs an operation status to the image recording unit, and image recording is resumed (for about 10 to 20 seconds). (For example, several minutes) (step 1069). At the same time, the flashlight 18a blinks and the buzzer 18b sounds (for example, several tens of seconds) (step 10610).
On the other hand, when the moving body sensor 17 does not detect an intruder (No in Step 1067), the image recording is stopped and the process proceeds to Step 10611.
When the power sensor 210 senses that the power supply from the cigarette lighter socket has stopped (Yes in step 10611), image recording is resumed (step 10612), and the process returns to step 102 to supply power from the cigarette lighter socket. If it is not sensed that has stopped (No in Step 10611), the process returns to Step 1064.

Next, a processing flow in the personal computer C after image transfer in the in-vehicle monitoring camera system of the present embodiment will be described based on FIG.
When the personal computer C is turned on, the image acquisition unit 31 of the personal computer C first acquires the common memory transferred from the image output unit (step 201), and then acquires the image memory recorded in the image recording unit 23. (Step 202). Next, the image editing unit 32 rearranges the image signals recorded in the image memory in the order of recording time (step 203), and associates them with the operation status of the camera unit A recorded in the common memory (step 204). The process is terminated.

  According to the present invention, an in-vehicle monitoring system capable of analyzing in detail a vehicle accident or traffic violation situation and collecting image information and camera operation status as evidence for verification is provided.

It is a block diagram which shows embodiment of the vehicle-mounted monitoring camera system which concerns on this invention. The example of the vehicle-mounted monitoring system of this embodiment is shown. It is a figure which shows the example of attachment to the vehicle interior of the camera part A and the main-body part B. FIG. 3 is a diagram illustrating an example of a recording format of an image storage unit 14. FIG. It is a figure which shows an example of the recording format when the image recording part 23 receives the electrical signal from the impact sensor 12 or an input signal. It is a figure which shows an example of rearrangement at the time of the transfer by the image total output part. It is a flowchart which shows the operation | movement flow of the vehicle-mounted monitoring camera system of this embodiment. It is a flowchart which shows the processing flow in the personal computer C after the image transfer in the vehicle-mounted monitoring camera system of this embodiment.

Explanation of symbols

A Camera unit B Main unit C Computer (computer)
DESCRIPTION OF SYMBOLS 11 Electronic camera 12 Impact sensor 13 Operation | movement state display part 14 Vibration sensor 15 Input part 16 Reset part 17 Moving body sensor 18a Flashlight 18b Buzzer 21 Image input part 23 Image recording part 24 ON / OFF signal input / output part 25 Control part 26 Image output Unit 27 backup power unit 28 power unit 29 built-in battery 30 power sensor 31 image acquisition unit 32 image editing unit 33 image storage unit

Claims (17)

It consists of a camera unit that can be mounted on the vehicle, a main unit and a personal computer.
The camera unit periodically acquires an image and converts it into an image signal; and
An impact sensor that senses the impact of a collision and converts it into an electrical signal;
A vibration sensor that senses vertical vibrations and converts them into electrical signals;
The main unit can be connected to the personal computer and camera unit by wire or wirelessly.
An image input unit for acquiring an image signal from the electronic camera;
An image recording unit for storing the image signal and the operation status of the camera unit;
An ON / OFF signal input / output unit that receives an electrical signal from the impact sensor and an electrical signal from the vibration sensor and outputs the electrical signal as an operation status of the camera unit to the image recording unit;
An image output unit for transferring the image signal recorded in the image recording unit and the operation status of the camera unit to a personal computer;
The personal computer has an image acquisition unit that acquires an image signal and an operation status of the camera unit,
An image editing unit for editing the image signal and the operation status of the camera unit;
An in-vehicle surveillance camera system comprising an image storage unit for recording and storing an image signal edited by the image editing unit and an operation state of the camera unit.   The image recording unit is capable of storing a certain number of frames of the image signal and the operation status of the camera unit A in the order of recording time, and when the last frame is recorded, the image recording unit overwrites and saves from the first frame. The vehicle-mounted surveillance camera system according to 1.   3. The in-vehicle monitoring camera system according to claim 2, wherein the image recording unit stops recording at a sensing time when an electric signal from the impact sensor is output from the ON / OFF signal input / output unit.   When the electrical signal from the vibration sensor is output from the ON / OFF signal input / output unit, the image recording unit determines whether the vehicle is running or stopped based on the frequency of the electrical signal, and records the image signal during traveling. The in-vehicle surveillance camera system according to claim 1, wherein the interval is shortened and the recording interval is lengthened during the stop. The camera unit further includes an input unit for stopping and / or starting the operation of the camera unit by manual operation and converting the stop and / or start into an electrical signal.
5. The ON / OFF signal input / output unit of the main body unit further receives an electrical signal from the input unit and outputs an operation state to the image recording unit. In-vehicle surveillance camera system.   6. The in-vehicle monitoring camera system according to claim 5, wherein the image recording unit stops recording at a sensing time when an electric signal from the input unit is output from the ON / OFF signal input / output unit.   The image output unit transfers the image signal recorded in the image recording unit and the operation status of the camera unit to the personal computer when the ON / OFF signal input / output unit of the main unit receives the electrical signal from the impact sensor or the input signal. The in-vehicle surveillance camera system according to any one of claims 1 to 6.   The in-vehicle monitoring camera system according to claim 1, wherein the image editing unit rearranges the image signal acquired by the image acquisition unit and the operation state of the camera unit according to the recording time. The ON / OFF signal input / output unit is equipped with an electronic camera shooting interval adjustment timer that can take a long shooting interval while stopping, while setting a short shooting interval while traveling,
The in-vehicle monitoring camera system according to claim 1, wherein the image recording unit records the photographing interval set by the timer as an operation state of the camera unit. The camera unit further includes an operation state display unit that displays an operation state of the camera unit,
The ON / OFF signal input / output unit of the camera unit further inputs an ON / OFF signal according to the stop and / or start of recording by the image recording unit. In-vehicle surveillance camera system.   11. The electronic camera of the camera unit includes two or more cameras, and the image recording unit of the main body unit stores an image signal and an operation state of the camera unit for each electronic camera. The in-vehicle surveillance camera system described in Crab. The camera unit senses an intruder during parking and converts it into an electrical signal,
When there is an intruder at the time of parking, further equipped with a warning machine that warns against this,
The on-vehicle unit according to claim 1, wherein the ON / OFF signal input / output unit of the main body unit further receives an electric signal from the moving body sensor and outputs an operation state to the image recording unit. Surveillance camera system.   The in-vehicle surveillance camera system according to claim 1, wherein the camera unit is equipped with a lens hood.   The in-vehicle monitoring camera system according to claim 12 or 13, wherein the image recording unit starts recording when an electric signal from the moving body sensor is output from the ON / OFF signal input / output unit.   The in-vehicle surveillance camera system according to any one of claims 12 to 14, wherein the warning device is a flashlight and / or a buzzer.   The in-vehicle monitoring camera system according to claim 1, wherein the main body unit further includes a power source unit that supplies power to the camera unit and the main body unit from a cigarette socket in the vehicle. The main unit has a built-in battery that supplies power when power is not supplied from the power unit.
The in-vehicle monitoring camera system according to claim 15, further comprising a power sensor for detecting whether or not power is supplied from the power supply unit and switching to supply from a built-in battery when supply from the power supply unit is lost.