CN110769190A - Event detection and recording system, and management and starting method of information acquisition device - Google Patents
Event detection and recording system, and management and starting method of information acquisition device Download PDFInfo
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- CN110769190A CN110769190A CN201810822991.XA CN201810822991A CN110769190A CN 110769190 A CN110769190 A CN 110769190A CN 201810822991 A CN201810822991 A CN 201810822991A CN 110769190 A CN110769190 A CN 110769190A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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Abstract
The invention relates to an event detection and recording system and a management and starting method of an information acquisition device, wherein the management method of the information acquisition system comprises the following steps: detecting communication connections of a plurality of information acquisition devices, and generating and outputting a trigger signal to other information acquisition devices when any one information acquisition device is abnormal in communication so that the other information acquisition devices execute an information acquisition procedure in response to the trigger signal; the starting method of the information acquisition device comprises the following steps: outputting a state signal according to a time interval, detecting a state reply corresponding to the state signal, and executing an information acquisition procedure when the state reply is not received; the event detecting and recording system comprises: the information acquisition devices output a state signal according to a time interval, and the manager confirms whether the state signal from each information acquisition device is received or not according to the time interval.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to an event detecting and recording technology, and more particularly, to an event detecting and recording system and a method for managing and starting an information capturing device.
[ background of the invention ]
Generally, an information capturing device is portable and can be used to capture media data such as video and audio. With the rise of public security awareness, the portable information capturing device can be used as a security auxiliary device due to its features of portability and instant information capturing, and is widely applicable to various fields.
In addition, the portable information capturing device is used most frequently by law enforcement officers (police officers and security officers), and when the law enforcement officers detect crimes, they often need to search for evidence, record video and record sound in order to preserve crime evidence. In addition, nowadays, law enforcement social education is popularized, the people rights awareness is high, participants in a tourist gathering can record and record the video and sound of law enforcement officers at the same time, and the method is the best security means by completely recording the whole process without omission in order to avoid unnecessary disputes in the future.
Therefore, how to effectively record the images and sounds of the scene when the law enforcement officer arrives at the scene of a meeting, a tour or a crime is an issue concerned by the law enforcement officer in a non-missing state.
[ summary of the invention ]
However, in emergency situations, law enforcement personnel often have no time to manually start capturing information, or find that the information capturing device is faulty or dead when a search is needed, so that images and/or sounds of the scene cannot be recorded immediately.
In view of the above, the present invention provides an event detecting and recording system, a management method for information capturing devices, and a starting method for information capturing devices, which are suitable for ensuring communication connection between a manager and a plurality of information capturing devices, and can help record live images and/or sounds by using other information capturing devices in real time when any information capturing device is in communication abnormality.
In one embodiment, a method for managing an information retrieval device includes: the method comprises the steps of detecting communication connection of a plurality of information acquisition devices, and generating and outputting a trigger signal to other information acquisition devices when any one of the information acquisition devices is abnormal in communication, so that the other information acquisition devices respond to the trigger signal and execute a first information acquisition procedure.
In one embodiment, a method for starting an information retrieval device includes: the method comprises the steps of outputting a state signal according to a time interval, detecting a state reply corresponding to the state signal, and executing an information acquisition procedure when the state reply is not received.
In one embodiment, an event detection and recording system includes: a plurality of information capturing devices and a manager. Each information acquisition device outputs a state signal according to a time interval. The manager determines whether the status signal from each information capturing device is received according to the time interval. When receiving the status signal, the manager returns a status reply to the corresponding information acquisition device. Otherwise, when the state signal is not received, the manager judges that the communication connection state of the corresponding information acquisition device is abnormal and outputs a trigger signal to other information acquisition devices, so that the other information acquisition devices respond to the trigger signal and execute a first information acquisition program.
[ description of the drawings ]
Fig. 1 is a state diagram of an information retrieval system according to an embodiment of the invention.
Fig. 2 is a schematic diagram illustrating normal communication between a plurality of information capturing devices and a manager according to an embodiment of the invention.
FIG. 3 is a diagram illustrating communication anomalies between information capture devices and a manager according to another embodiment of the present invention.
Fig. 4 is a schematic diagram illustrating a state of an information capturing apparatus according to another embodiment of the present invention.
[ detailed description ] embodiments
Fig. 1 is a state diagram of an information retrieval system according to an embodiment of the invention.
Referring to fig. 1, the event detecting and recording system includes a plurality of information capturing devices and a manager 40. Three information capturing devices are taken as an example, but the number of the information capturing devices is not limited by the invention. For convenience of description, the information capturing devices are hereinafter referred to as a first information capturing device 30a, a second information capturing device 30b, and a third information capturing device 30c, respectively. In some embodiments, the manager 40 may be mounted on the police car 60 and use the car battery of the police car 60 or the built-in battery of the manager 40 as a power source.
Under normal operation, the manager 40 is communicatively connected to the first information capturing device 30a, the second information capturing device 30b, and the third information capturing device 30c via a wireless communication E01. The manager 40 is also communicatively coupled to each of the information retrieval devices. In some embodiments, this wireless communication E01 may employ Short range wireless communication (SRW) technology. Among them, the SRW technology includes Wireless Fidelity (WiFi) technology, Bluetooth (BT) technology, Near Field Communication (NFC) technology, or Zigbee (Zigbee) technology.
In some embodiments, when any of the information capturing devices executes the information capturing process to start recording the images and/or sounds of the scene, the information capturing device will inform the manager 40 that its operation status is "information capturing". In one example, when the manager 40 receives a notification from any information capturing device that its operation status is "in the process of capturing information", the manager 40 may broadcast a trigger signal to other information capturing devices in the periphery of the information capturing device, so that the other information capturing devices in the periphery start to perform the information capturing process.
In addition, each of the information capturing devices and the manager 40 will periodically perform a confirmation procedure of the communication connection status therebetween.
Fig. 2 is a schematic diagram illustrating normal communication between a plurality of information capturing devices and a manager according to an embodiment of the invention.
Referring to fig. 1 and fig. 2, each information capturing device outputs a status signal according to a time interval and transmits the status signal to the manager 40 through the wireless communication E01. In other words, the third information capturing device 30c outputs a status signal T101 according to a time interval, the second information capturing device 30b outputs a status signal T102 according to a time interval, and the first information capturing device 30a outputs a status signal T103 according to a time interval. The manager 40 receives the status signals T101, T102 and T103 at different time points or at the same time point. In some embodiments, the time interval may be about 10 seconds to 10 minutes.
In some embodiments, the manager 40 can know the communication connection status of the information capturing device by determining whether a status signal sent by the information capturing device is received within a time interval, and record the operation status of each information capturing device in a status table. Here, the state table may be stored in a storage unit. In other words, the storage unit is used for storing the communication connection status between each information capturing device and the manager 40.
In some embodiments, the manager 40 can know the communication connection status of the information capturing device by determining whether the status signal sent by the information capturing device is received, and can also know the operation status of the information capturing device (e.g., executing the information capturing program or not executing the information capturing program) from the status signal sent by the information capturing device, and record the operation status of each information capturing device in the status table.
In some embodiments, manager 40 may have a device table. The device table records the legal information capturing devices (i.e., the first information capturing device 30a, the second information capturing device 30b, and the third information capturing device 30 c). The manager 40 will detect the communication connection status of all the valid information capturing devices recorded in the device table at regular intervals, i.e. whether there is a status signal sent from each information capturing device. Wherein the device table is storable in the storage unit.
When the manager 40 receives the status signal transmitted from any information capturing device, the manager 40 determines that the communication connection status of the information capturing device is normal and marks the communication connection status of the information capturing device in the status table as normal. After receiving the status signal, the manager 40 generates a status reply according to the status table and returns the status reply to the information capturing device sending the status signal. Thus, the information retrieving device can know whether the communication connection status between the information retrieving device and the manager 40 is normal or not by whether the status reply is received or not.
For example, after the manager 40 receives the status signal output by the third information capturing device 30c, the manager 40 determines that the communication connection status of the third information capturing device 30c is normal and marks the communication connection status of the third information capturing device 30c in the status table as normal. Here, the manager 40 generates a status reply R101 according to the status table and returns the status reply R101 to the third information capturing device 30 c. After the third information capturing device 30c receives the status reply R101, the third information capturing device 30c can confirm that the communication connection status between the third information capturing device and the manager 40 is normal.
After the manager 40 receives the status signal output by the second information capturing device 30b, the manager 40 determines that the communication connection status of the second information capturing device 30b is normal and marks the communication connection status of the second information capturing device 30b in the status table as normal. Here, the manager 40 generates a status reply R102 according to the status table and returns the status reply R102 to the second information capturing device 30 b. After the second information capturing device 30b receives the status reply R102, the second information capturing device 30b can confirm that the communication connection status between the second information capturing device and the manager 40 is normal.
Similarly, after the manager 40 receives the status signal output by the first information capturing device 30a, the manager 40 determines that the communication connection status of the first information capturing device 30a is normal and marks the communication connection status of the first information capturing device 30a in the status table as normal. Here, the manager 40 generates a status reply R103 according to the status table and returns the status reply R103 to the first information capturing device 30 a. After the first information capturing device 30a receives the status reply R103, the first information capturing device 30a can confirm that the communication connection status between the first information capturing device and the manager 40 is normal.
In some embodiments, the information capturing device can not only confirm whether the communication connection status between the information capturing device and the manager 40 is normal through the status reply, but also know whether the communication connection status between other legal information capturing devices and the manager 40 is normal through the status reply.
In an exemplary embodiment, after the first information capturing device 30a receives the status reply R103, the first information capturing device 30a can obtain the communication connection status between the second information capturing device 30b and the manager 40 and the communication connection status between the third information capturing device 30c and the manager 40 from the status reply R103.
When the communication connection status between the manager 40 and either one of the second information capturing device 30b and the third information capturing device 30c is abnormal, the first information capturing device 30a executes an information capturing procedure to start recording the images and/or sounds of the scene. On the contrary, when the communication connection status between the second information capturing device 30b and the manager 40 is normal, the first information capturing device 30a keeps the current operation status.
FIG. 3 is a diagram illustrating communication anomalies between information capture devices and a manager according to another embodiment of the present invention.
In some embodiments, when the manager 40 detects that the communication connection status of any information capturing device is abnormal, the manager 40 generates and outputs a trigger signal to other legitimate information capturing devices, so that the other legitimate information capturing devices execute an information capturing procedure (hereinafter referred to as a first information capturing procedure) in response to the trigger signal to start recording images and/or sounds of the scene. In other embodiments, the information capturing device that cannot be connected to the manager 40 due to the abnormal signal may itself execute the information capturing program, for example, when the communication connection status between the first information capturing device 30a and the manager 40 is abnormal, the first information capturing device 30a may itself start the first information capturing program to start recording the image and/or sound of the scene, so in still other embodiments, if the manager 40 finds the abnormality, the information capturing device may automatically start the first information capturing program due to the abnormal communication connection status between itself and the manager 40 by interrupting the communication with the information capturing device.
Referring to fig. 1 and 3, it is assumed that the third information capturing device 30c still does not output a status signal for the time interval, the second information capturing device 30b outputs a status signal T102 for the time interval, and the first information capturing device 30a outputs a status signal T103 for the time interval. At this time, the manager 40 starts to count the time after receiving the status signal of the third information capturing device 30c last time, and still does not receive the status signal of the third information capturing device 30c when the time reaches the time interval. The manager 40 determines that the communication connection status of the third information capturing device 30c is abnormal because the status signal of the third information capturing device 30c is not received within the time interval, and marks the communication connection status of the third information capturing device 30c in the status table as abnormal. Meanwhile, since the manager 40 receives the status signal T102 from the second information capturing device 30b within the time interval to determine that the communication connection status of the second information capturing device 30b is normal, the manager 40 outputs a trigger signal T102 to the second information capturing device 30 b. The second information capturing device 30b starts a first information capturing procedure according to the trigger signal t 102. Similarly, the manager 40 receives the status signal t103 of the first information capturing device 30a within the time interval, and determines that the communication connection status of the first information capturing device 30a is normal, so the manager 40 outputs a trigger signal t103 to the first information capturing device 30 a. The first information capturing device 30a starts a first information capturing procedure according to the trigger signal t 103. The first information capturing procedure is that the information capturing device itself starts to record the image and/or sound of the scene.
In some embodiments, when the manager 40 determines that the communication connection status of the third information capturing device 30c is abnormal, the manager 40 executes an information capturing procedure (hereinafter, referred to as a second information capturing procedure) in addition to outputting a trigger signal to other information capturing devices to start recording images and/or sounds of the scene.
In some embodiments, the communication connection status between the manager 40 and the plurality of information capturing devices is abnormal, which means that there is no communication or communication between the manager 40 and the information capturing devices. There may be situations where the information capture device is powered down and has entered a shutdown or sleep mode. The manager 40 has not received the status signal of the information acquisition device, the information acquisition device has been far away from the manager 40 or the information acquisition device is blocked by an obstacle from transmitting the status signal. In another possible situation, the information capturing device is damaged and cannot transmit the status signal. The above situation causes the communication status between the information capturing device and the manager 40 to be abnormal.
In some embodiments, the wireless communication E02 may employ a long-range communication technology, which may be one of 2G communication supporting GSM900 and GSM1800, 2.5G communication using Time Division Multiple Access (TDMA), 3G communication using Code Division Multiple Access (CDMA), 4G communication using High Speed Packet Access (HSPA), or 5G communication using Extremely High Frequency (EHF) electromagnetic waves.
In some embodiments, as shown in fig. 1, the manager 40 is electrically connected to the tachograph 80. Generally, the tachograph 80 can be installed at the front (part of the driver seat) of the police car 60 or at the rear (rear license plate or tail lamp) of the police car 60, or at both the front and the rear, and the invention is not limited thereto, and only provides one possible implementation.
In some embodiments, the manager 40 already establishes the identification codes ID of the first information capturing device 30a, the second information capturing device 30b and the third information capturing device 30c in the state table of the manager 40 through the setting of the internal network before the law enforcement officer performs the task or the attendance action. The manager 40 identifies which information capturing devices belong to the same group (the same manager) according to the status table, so that when the information capturing devices on the police cars 60 are in task at the same time, the respective managers 40 will not determine the error.
In some embodiments, as shown in FIG. 4, the connection of the manager 40 to the server 50 is connected in a wireless communication E02. The manager 40 may be configured to send a report message to the server 50 when the communication connection status between the plurality of information capturing devices and the manager 40 is normal as shown in fig. 2, where the report message informs the server 50 that the communication connection status between the manager 40 and the first information capturing device 30a, the second information capturing device 30b, and the third information capturing device 30c is normal and not abnormal. In one example, the server 50 may be installed in a monitoring center, which is controlled by the attendant for 24 hours to ensure immediate notification of an emergency. In another example, the server 50 may be an in-vehicle computer (in-vehicle computer), and the manager 40 communicates with the in-vehicle computer in a wireless communication E02 manner, that is, the manager 40 on the police car communicates with the in-vehicle computer (i.e., the server 50) of another police car.
In one embodiment, referring to fig. 4, the manager 40 has a display 402, which may be a monitor, a Liquid Crystal Display (LCD) or a Light Emitting Diode (LED) display, and the display 402 is used to display the connection between the first information capturing device 30a, the second information capturing device 30b, and the third information capturing device 30c and the manager 40. The manager 40 may also have a camera unit having a lens 401. The lens 401 may be one of a fisheye lens or a wide-angle lens, and is used to capture things that happen at the location of the police car 60. The manager 40 may be electrically connected to the tachograph 80. The police car 60 is electrically connected to the manager 40 and the driving recorder 80, respectively.
The invention provides an event detection and recording system and a management and starting method of information acquisition devices, which are suitable for ensuring the operation relation of communication connection between a manager and a plurality of information acquisition devices, and can help to record on-site images and/or sounds by other information acquisition devices in real time when any information acquisition device has communication abnormity.
It should be noted that, although the steps are described in sequence, the sequence is not a limitation of the present invention, and persons skilled in the art should understand that the execution sequence of the partial steps can be performed simultaneously or exchanged in sequence where reasonable.
However, the above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and all simple equivalent changes and modifications made according to the claims and the contents of the patent specification should be included in the scope of the present invention.
Claims (8)
1. A management method for an information capturing device, comprising:
detecting the communication connection state of a plurality of information acquisition devices; and
when the communication connection state of any one of the information acquisition devices is abnormal, a trigger signal is generated and output to the other information acquisition devices, so that the other information acquisition devices respond to the trigger signal to execute a first information acquisition procedure.
2. The method as claimed in claim 1, further comprising executing a second information capturing procedure when the communication link status of any one of the information capturing devices is abnormal.
3. The method as claimed in claim 1, wherein the step of detecting the communication connection status of the plurality of information capturing devices comprises:
determining whether a status signal from each of the information capturing devices is received;
when the state signal is received, returning a state to the corresponding information acquisition device; and
and when any one of the state signals is not received, judging that the communication connection state of the corresponding information acquisition device is abnormal.
4. A method for starting an information capturing device, comprising:
outputting a status signal according to a time interval;
detecting a state reply corresponding to the state signal; and
when the state reply is not received, an information acquisition procedure is executed.
5. The method as claimed in claim 4, further comprising:
the time interval is timed when the status reply is received.
6. The method as claimed in claim 4, wherein the status reply includes a communication connection status of at least one other information capturing device, and the method further comprises:
and executing the information acquisition program when the communication connection state is abnormal.
7. An event detection and recording system, comprising:
the information acquisition devices output a state signal according to a time interval;
and the manager confirms whether the state signal from each information acquisition device is received or not according to the time interval, returns a state to the corresponding information acquisition device when the state signal is received, judges the communication connection state of the corresponding information acquisition device to be abnormal when the state signal is not received, and outputs a trigger signal to other information acquisition devices so that the other information acquisition devices execute a first information acquisition procedure in response to the trigger signal.
8. The event detection and recording system of claim 7, wherein the manager further executes a second information retrieval procedure when the status signal is not received.
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