TWI661689B - Starting Method for Information-Capturing Device to Shoot - Google Patents

Abstract

A method for starting an information acquisition device includes receiving an event message including a destination information by a near field communication technology, comparing a first identification code and destination information of an information extraction device, and using the first identification code. When the information matches the destination information, the information acquisition device is activated to start capturing environmental data, and when the first identification code does not match the destination information, the near field communication technology is used to broadcast the event information.

Description

Method for starting information retrieval device

The invention relates to a control technology of an information acquisition device, in particular to a method for starting the information acquisition device.

Generally speaking, information retrieval devices are portable and can be used to capture media data such as images and sound. With the improvement of the public's awareness of security, the portable information retrieval device can be used as a safety auxiliary device due to both the convenience of carrying and the real-time information retrieval and is widely used in various fields. For example, guards can assist in police work by wearing an information capture device while on duty, and the media data recorded by the information capture device can be used to provide future evidence and clarify responsibilities. In use, the user can enable a portable information retrieval device to perform real-time information retrieval by operating a start switch on the information retrieval device.

However, in emergency situations, users often do not have time to manually start the capture, or the time point for capturing images and / or sounds of key situations has been missed during startup. Most security guards wear only one information acquisition device, and they can only shoot from a single perspective, which is difficult to provide more comprehensive media data. Furthermore, some police officers are not able to record while performing police work without wearing an information capture device. In addition, some information retrieval devices do not have a network function, so that the remote server cannot be notified in real time when an event occurs.

In view of this, the present invention proposes a method for starting an information acquisition device, which is applicable to a corresponding information acquisition device in a wireless activation range when an event occurs, without waiting for manual activation, so as to automatically and automatically record the environmental image and / Or sound.

In some embodiments, the present invention provides a method for activating an information acquisition device. When an event occurs, the method can further notify a remote server through a peripheral device that supports remote communication technology.

In one embodiment, a method for activating an information retrieval device includes receiving an event message including a destination information by a near field communication technology, and comparing a first identification code and destination information of an information retrieval device. When the first identification code matches the destination information, the information acquisition device is activated to start capturing environmental data, and when the first identification code does not match the destination information, the near field communication technology is used to broadcast the event message.

In another embodiment, a method for activating an information acquisition device includes receiving an event message including a destination information by a near field communication technology, and comparing a first identification code and a destination of an information acquisition device. Information, when the first identification code matches the destination information, the information acquisition device is activated to start capturing environmental data, when the first identification code does not match the destination information, the destination information is searched for a weekly device comparison table, and When the surrounding device comparison table has at least a second identification code corresponding to the destination information, the near field communication technology broadcasts the event message.

Referring to FIG. 1 and FIG. 2, the event detection and recording system includes a status sensor 20, a plurality of information acquisition devices 30 a to 30 f, a trigger box device 40, and a server 60.

Here, the state sensor 20 can sense a predetermined operation of a target object and generate an event message when the predetermined operation occurs on the target object. For example, taking the target as the gun 10 as an example, the state sensor 20 can be disposed on the holster 12 and senses the event that the gun 10 leaves the holster 12 when the user pulls the gun 10 to generate an event message. Here, the status sensor 120 may include a metal sensing element, and detect whether the gun 10 is within a sensing range by the metal sensing element. In another exemplary embodiment, the state sensor 20 can be disposed on a hand accessory such as a bracelet or a ring, and can sense the user's gun-lifting action when the user raises the gun 10 to generate an event message. Here, the state sensor 20 may include a posture sensing element, and use the posture sensing element to detect whether a hand wearing a hand accessory is moving and a moving direction. In yet another example, the state sensor 20 may also detect sound of the gun when the gun 10 fires through sound sampling, and generate an event message when the sound of the gun is detected.

In some embodiments, each information acquisition device 30a ~ 30f can be normally closed, dormant or inactive, and will be activated when an event occurs, thereby reducing the power consumption of the information acquisition devices 30a ~ 30f. And extend its use time. In some embodiments, the information capturing devices 30a-30e may be a portable camera device. In some embodiments, the information capturing device 30f may be a fixed camera device, such as a driving recorder installed on the vehicle 50.

In some embodiments, the information acquisition devices 30a ~ 30f may not have a networking function, that is, they do not have a long-distance communication module (such as a WIFI module, a 3G module, a 4G module, etc.), thereby reducing the information acquisition device. 30a ~ 30f use power consumption and extend its use time.

In some embodiments, referring to FIG. 3, one or more of the information retrieval devices 30a ~ 30f, 30a ~ 30c, 30e ~ 30f does not have a network connection function, and among the information retrieval devices 30a ~ 30f, The other information acquisition device 30d has a network function.

Here, the status sensor 20 further includes a near field communication module. When the event message is generated, the near field communication module broadcasts the event message. Here, the event message includes a destination information. For example, the near field communication module may be a Bluetooth beacon module, and the event message may be a beacon signal.

In some embodiments, referring to FIG. 4, each information acquisition device 30 (ie, any of 30a to 30f) includes: a near field communication module 310, a recording unit 320, a storage unit 330, and a Control unit 340. The control unit 340 is coupled to the field communication module 310, the recording unit 320 and the storage unit 330. Each information retrieval device 30 has an identification code, and the identification code is stored in the storage unit 330. In some embodiments, the information retrieval devices 30a-30f each have different identification codes.

For the sake of clarity, the identification code stored in the storage unit 330 is hereinafter referred to as a first identification code.

Referring to FIG. 1 to FIG. 5, the information acquisition device 30 receives an event message by using a near field communication technology (step S110), that is, the near field communication module 310 receives an event message broadcast by the status sensor 20. The control unit 340 reads the first identification code from the storage unit 330 and compares the first identification code with the destination information carried in the event message (step S120).

In one embodiment, when the first identification code matches the destination information, the control unit 340 starts the recording unit 320 (step S130), so that the recording unit 320 starts to capture an environment data to generate a corresponding media file, ie Images and / or sounds of the surrounding environment are recorded. When the first identification code does not match the destination information, the information acquisition device 30 broadcasts the event message using near field communication technology (step S160), that is, the control unit 340 directly receives the received event message through its near field communication module 310. Send it out as a broadcast.

In some embodiments, the destination information in the event message may specify a unique identification code. For example, assume that the first identification code stored by the information retrieval device 30a is "05", the first identification code stored by the information retrieval device 30b is "06", and the destination information is designated as "05". The information acquisition devices 30a and 30b are both within the signal range of the status sensor 20, and the information acquisition devices 30c ~ 30f are outside the signal range of the status sensor 20. The information acquisition devices 30a and 30b will all receive event messages broadcast by the status sensor 20. In addition, the first identification code "05" of the information acquisition device 30a matches the destination information "05" in the event message, so the recording unit 320 of the information acquisition device 30a is activated to start acquiring environmental data. The first identification code of the information retrieval device 30b is "06" and the destination information "05" in the event message does not match. Therefore, the near field communication module 310 of the information retrieval device 30b broadcasts the event message in the form of a broadcast. Forward it out. At this time, the information capturing device 30c within the signal range of the information capturing device 30b will receive the event message broadcast by the information capturing device 30b, in other words, the event message will be transmitted to the information capturing device via the information capturing device 30b. 30c. When the first identification code of the information retrieval device 30c does not match the destination information in the event message, the near field communication module 310 of the information retrieval device 30c will forward the event message in a broadcast form to forward The event message is broadcast to the information acquisition devices 30d and 30e within the signal range, and then forwarded to the trigger box device 40.

Here, the trigger box device 40 has a network connection function, that is, a remote communication module (such as a WIFI module, a 3G module, a 4G module, etc.). When the trigger box device 40 receives an event message, it can generate a notification signal according to the received event message, and send the notification signal to a server 60 by using a long-distance communication technology, that is, the network is connected by a long-distance communication module. The notification signal is transmitted to the server 60 via the network. The notification signal may include event information and position data of the trigger box device 40. Moreover, the event message may further include source information. The source information indicates the identification code of the status sensor 20 that generated the event message. Therefore, the server 60 can know the location of the event through the source information carried in the event message in the notification signal. In some embodiments, the trigger box device 40 may be installed on the car 50 and connected to the network through the car network of the car 50.

In some embodiments, the destination information in the event message may be specified multiple identification codes or specified all. For example, it is assumed that the first identification code stored by the information retrieval device 30a is "05", the first identification code stored by the information retrieval device 30b is "06", and the destination information is designated as "all". At this time, after the information capturing devices 30a and 30b receive the event message, the control unit 340 of both of them determines that the first identification code matches the destination information in the event message, and therefore starts the recording unit 320 to start capturing environmental data.

In another embodiment, the event message may further include a time stamp, and the time stamp indicates a time when the status sensor 20 generates the event message. At this time, the storage unit 330 of each information retrieval device 30 further stores a time threshold.

In an embodiment, referring to FIG. 6, when the first identification code matches the destination information, the control unit 340 starts the recording unit 320 (step S130), so that the recording unit 320 starts to capture an environmental data to generate a corresponding media. Files, which are images and / or sounds of the surrounding environment. When the first identification code does not match the destination information, the control unit 340 of the information retrieval device 30 first calculates the time difference between the time stamp in the event message and the current time (step S150), and compares the time threshold with the calculation Time difference (step S152). When the time stamp does not fall within the time threshold, the control unit 340 discards the received event message (step S154), that is, the broadcast step of the event message is not performed (step S160 is not performed). When the time stamp falls within the time threshold, the control unit 340 broadcasts the event message using the near field communication technology (step S160), that is, the control unit 340 directly broadcasts the received event message through the near field communication module 310 again. Send the form out. For example, suppose the time threshold is 10 minutes. When the time difference between the generation time of the event message and the current time (that is, the time difference between the time stamp and the current time) exceeds 10 minutes, the control unit 340 discards the received event message. On the contrary, when the time difference between the time when the event message is generated and the current time (that is, the time difference between the time stamp and the current time) is less than or equal to 10 minutes, the control unit 340 broadcasts the event message using near field communication technology.

In another embodiment, the event message may further include a position data, and the position data indicates a geographical position when the status sensor 20 generates the event message. At this time, the storage unit 330 of each information retrieval device 30 further stores a distance threshold.

Referring to FIG. 7, when the first identification code matches the destination information, the control unit 340 starts the recording unit 320 (step S130), so that the recording unit 320 starts to capture an environmental data to generate a corresponding media file, ie, to the surrounding environment. Video and / or audio. When the first identification code does not match the destination information, the control unit 340 of the information acquisition device 30 first calculates the distance difference between the position data in the event message and the current position (step S150 '), and compares the distance threshold Distance from the calculated distance (step S152 '). When the distance gap does not fall into the distance threshold, the control unit 340 discards the received event message (step S154 '), that is, the broadcast step of the event message is not performed (step S160 is not performed). When the distance gap falls within the distance threshold, the control unit 340 broadcasts the event message using the near field communication technology (step S160). That is, the control unit 340 directly broadcasts the received event message through the near field communication module 310 again. Send the form out.

In some embodiments, the storage unit 330 of each information retrieval device 30 further stores a weekly device comparison table. The surrounding device comparison table records the identification codes of other information retrieval devices 30 located around the information retrieval device 30. For the sake of clarity, the identification code recorded in the surrounding device comparison table is hereinafter referred to as the second identification code.

Referring to FIG. 8, when the first identification code matches the destination information, the control unit 340 starts the recording unit 320 (step S130), so that the recording unit 320 starts to capture an environment data to generate a corresponding media file, ie, to the surrounding environment. Video and / or audio. When the first identification code does not match the destination information, the control unit 340 of the information acquisition device 30 first searches the surrounding device comparison table with the destination information in the event message (step S140). When one or more second identification codes in the surrounding device comparison table are consistent with the destination information, the information acquisition device 30 broadcasts the received event message by the near field communication technology (step S160), that is, its control unit 340 borrows The near field communication module 310 directly sends the received event information in a broadcast form. Conversely, when there is no one or more second identification codes in the surrounding device comparison table that match the destination information, the control unit 340 of the information acquisition device 30 discards the received event message (step S142).

In another embodiment, the event message may further include a time stamp, and the time stamp indicates a time when the status sensor 20 generates the event message. At this time, the storage unit 330 of each information retrieval device 30 further stores a time threshold.

In an exemplary example, referring to FIG. 9, when one or more second identification codes in the surrounding device comparison table match the destination information, the control unit 340 of the information acquisition device 30 first calculates a time stamp in the event message. The time difference from the current time (step S150), and the time threshold is compared with the calculated time difference (step S152). When the time stamp does not fall within the time threshold, the control unit 340 discards the received event message (step S154), that is, the broadcast step of the event message is not performed (step S160 is not performed). When the time stamp falls within the time threshold, the control unit 340 broadcasts the event message using the near field communication technology (step S160), that is, the control unit 340 directly broadcasts the received event message through the near field communication module 310 again. Send the form out.

In another exemplary example, referring to FIG. 10, when the first identification code does not match the destination information, the control unit 340 of the information acquisition device 30 first calculates a time difference between the time stamp in the event message and the current time ( Step S150), and compare the time threshold with the calculated time difference (Step S152). When the time stamp does not fall within the time threshold, the control unit 340 discards the received event message (step S154), that is, the broadcast step of the event message is not performed (step S160 is not performed). When the time stamp falls within the time threshold, the control unit 340 further searches the surrounding device comparison table by using the destination information in the event message (step S140). When one or more second identification codes in the surrounding device comparison table match the destination information, the information acquisition device 30 broadcasts the event message using near field communication technology (step S160), that is, the control unit 340 uses its near field The communication module 310 directly sends the received event message in a broadcast form.

In another embodiment, the event message may further include a position data, and the position data indicates a geographical position when the status sensor 20 generates the event message. At this time, the storage unit 330 of each information retrieval device 30 further stores a distance threshold.

In an exemplary example, referring to FIG. 11, when one or more second identification codes in the surrounding device comparison table are consistent with the destination information, the control unit 340 of the information acquisition device 30 first calculates position data in the event message. The distance difference from the current position (step S150 '), and the distance threshold is compared with the calculated distance difference (step S152'). When the distance gap does not fall into the distance threshold, the control unit 340 discards the received event message (step S154 '), that is, the broadcast step of the event message is not performed (step S160 is not performed). When the distance gap falls within the distance threshold, the information acquisition device 30 broadcasts the event message by using the near field communication technology (step S160), that is, the control unit 340 directly retransmits the received event message by using its near field communication module 310. Broadcast it out. Conversely, when there is no one or more second identification codes in the surrounding device comparison table that match the destination information, the control unit 340 of the information acquisition device 30 discards the received event message (step S142).

In another example, referring to FIG. 12, when the first identification code does not match the destination information, the control unit 340 of the information acquisition device 30 first calculates a distance difference between the position data in the event message and the current position. (Step S150 '), and compare the distance threshold with the calculated distance difference (Step S152'). When the distance gap does not fall into the distance threshold, the control unit 340 discards the received event message (step S154 '), that is, the broadcast step of the event message is not performed (step S160 is not performed). When the distance gap falls within the distance threshold, the control unit 340 further searches the surrounding device comparison table by using the destination information in the event message (step S140). When one or more second identification codes in the surrounding device comparison table match the destination information, the information acquisition device 30 broadcasts the event message using near field communication technology (step S160), that is, the control unit 340 uses its near field The communication module 310 directly sends the received event message in a broadcast form.

In some embodiments, referring to FIG. 3, FIG. 13, and FIG. 14, when the information acquisition device 30d of the received event message has a remote communication module 350, the control unit 340 generates a notification signal according to the event message (step S170), and the remote communication module 350 transmits a notification signal to the server 60 through a remote communication technology (step S172). The notification signal may include event information and position data of the trigger box device 40. Moreover, the event message may further include source information. The source information indicates the identification code of the status sensor 20 that generated the event message. Therefore, the server 60 can know the location of the event through the source information carried in the event message in the notification signal.

It should be noted that although the foregoing steps are described in sequence, this order is not a limitation of the present invention. Those skilled in the art should understand that under reasonable circumstances, the execution order of some steps can be performed simultaneously or reversed.

In some embodiments, the destination information carried in the event message generated by the status sensor 20 may be preset by an electronic device and stored in a storage unit of the status sensor 20. In other words, in the set state, the state sensor 20 can establish communication with the electronic device in a wired or wireless manner. Then, the setting value of the destination information is generated by the electronic device and transmitted to the status sensor 20. Based on the received setting value, the status sensor 20 sets one or more designated identification codes to be taken as destination information when generating the event message.

In one embodiment, the aforementioned identification code of the information retrieval device 30 may be preset at the time of shipment from the factory and stored in its storage unit 330. In another embodiment, the aforementioned identification code of the information retrieval device 30 can also be preset by an electronic device and stored in the storage unit 330 of the information retrieval device 30. In other words, in the setting state, the information acquisition device 30 can establish communication with the electronic device in a wired or wireless manner. Then, a set value of an identification code is generated by the electronic device and transmitted to the information acquisition device 30.

In an embodiment, each of the aforementioned thresholds (time threshold or distance threshold) may be preset at the time of shipment and stored in the storage unit 330 thereof. In another embodiment, the aforementioned thresholds can also be preset through an electronic device and stored in the storage unit 330 of the information acquisition device 30. In other words, in the setting state, the information acquisition device 30 can establish communication with the electronic device in a wired or wireless manner. Then, a set value of the threshold is generated by the electronic device and transmitted to the information acquisition device 30.

In one embodiment, the surrounding device comparison table can be compiled by the server 60 and loaded into each information retrieval device 30 to be stored in its storage unit 330. In other words, each information acquisition device 30 can transmit its own position data and its own identification code to the server 60. The server 60 aggregates and forms the identification code of the information extraction device 30 within a predetermined range based on the position data of each information extraction device 30. The identification code of the information extraction device 30 within a predetermined range is summarized and sent back to the device comparison table. Corresponding information extraction device 30. For example, the network-capable information retrieval device 30 will periodically establish communication with the server 60 via the network to update its own location data and receive records from other information within a predetermined range around the updated location data. Take the surrounding device comparison table of the identification code of the device 30. The information acquisition device 30 without a network function can send its position data to a peripheral electronic device with a network function by using near field communication technology or in a wired form, and then send it to the server 60 and receive the returned Device comparison table.

In some embodiments, the aforementioned storage unit may be implemented by one or more storage elements. Here, the storage element may be, for example, a memory or a register, but it is not limited thereto.

In some embodiments, the aforementioned near field communication module may be, for example, but not limited to, a Bluetooth module.

In some embodiments, the aforementioned control unit may be implemented by one or more processing elements. Each processing element may be a microprocessor, a microcontroller, a digital signal processor, a central processing unit, a programmable logic controller, a state machine, or any analog and / or digital device that operates signals based on operating instructions.

In some embodiments, the recording unit may be implemented by a camera lens and an image processing unit. In an exemplary embodiment, the image processing unit may be an image signal processing chip (ISP). In another exemplary embodiment, the image processing unit and the control unit are implemented on the same chip.

In summary, the method for activating an information acquisition device according to the present invention is applicable to a corresponding information acquisition device in a wireless activation range when an event occurs, without waiting for manual activation, so as to automatically and automatically record the environment image when the event occurs And / or sound. In some embodiments, according to the information acquisition device and the starting method thereof of the present invention, when an event occurs, the remote server may be notified through a peripheral device that supports remote communication technology.

20‧‧‧Status Sensor

30‧‧‧ Information Retrieval Device

30a ~ 30f‧‧‧ Information Retrieval Device

40‧‧‧Trigger box device

60‧‧‧Server

310‧‧‧Near Field Communication Module

320‧‧‧Recording Unit

330‧‧‧Storage Unit

340‧‧‧Control unit

350‧‧‧Long distance communication module

S110 ~ S170‧‧‧step

FIG. 1 is a state diagram of an event detection and recording system according to an embodiment of the present invention. FIG. 2 is a state diagram of an event detection and recording system according to another embodiment of the present invention. FIG. 3 is a state diagram of an event detection and recording system according to another embodiment of the present invention. FIG. 4 is a functional block diagram of an information retrieval device according to an embodiment of the present invention. FIG. 5 is a flowchart of a method for starting an information retrieval device according to a first embodiment of the present invention. FIG. 6 is a flowchart of a method for activating an information retrieval device according to a second embodiment of the present invention. FIG. 7 is a flowchart of a method for activating an information retrieval device according to a third embodiment of the present invention. FIG. 8 is a flowchart of a method for starting an information retrieval device according to a fourth embodiment of the present invention. FIG. 9 is a flowchart of a method for activating an information retrieval device according to a fifth embodiment of the present invention. FIG. 10 is a flowchart of a method for starting an information retrieval device according to a sixth embodiment of the present invention. FIG. 11 is a flowchart of a method for starting an information retrieval device according to a seventh embodiment of the present invention. FIG. 12 is a flowchart of a method for starting an information retrieval device according to an eighth embodiment of the present invention. FIG. 13 is a functional block diagram of an information retrieval device according to another embodiment of the present invention. 14 is a flowchart of a method for starting an information retrieval device according to some embodiments of the present invention.

Claims (10)

A method for starting an information acquisition device includes: receiving an event message using a near field communication technology, wherein the event message includes a destination information; comparing a first identification code of the information acquisition device with the destination information; When the first identification code matches the destination information, the information acquisition device is activated to start capturing environmental data; and when the first identification code does not match the destination information, the near field communication technology is used to broadcast the Event message. The method for activating the information retrieval device according to claim 1, further comprising: generating a notification signal according to the event message, wherein the notification signal includes the event message and the position data of the information retrieval device; and The communication technology sends the notification signal to a server. The method for activating the information retrieval device according to claim 1, wherein when the device identification code matches the destination information, the method further comprises: generating a notification signal according to the event message, wherein the notification signal includes the event message and The information captures the location data of the device; and transmits the notification signal to a server using a long distance communication technology. The method for activating the information retrieval device according to claim 1, wherein the event message further includes a time stamp, and when the first identification code does not match the destination information, the method further includes: calculating the time stamp and the current Time difference between time; comparing the time difference with a time threshold; discarding the event message to not perform the broadcast step of the event message when the time difference does not fall within the time threshold; and the time difference falls within the time threshold When the broadcast step of the event message is performed. The method for activating the information retrieval device according to claim 1, wherein the event message further includes a position data of the information retrieval device, and when the first identification code does not match the destination information, the method further includes: Calculate a distance gap between the position data and a current position; compare a distance threshold and the distance gap; when the distance gap does not fall within the distance threshold, discard the event message to not perform the broadcast of the event message Step; and when the distance gap falls within the distance threshold, the broadcasting step of the event message is performed. A method for starting an information acquisition device includes: receiving an event message using a near field communication technology, wherein the event message includes a destination information; comparing a first identification code of the information acquisition device with the destination information; When the first identification code matches the destination information, the information acquisition device is activated to start capturing environmental data; when the first identification code does not match the destination information, the destination information is used to search for peripheral devices. A lookup table; and when the surrounding device lookup table has at least a second identification code that matches the destination information, broadcast the event message using the near field communication technology. The method for activating the information retrieval device according to claim 6, further comprising: generating a notification signal according to the event message, the notification signal including the event message and the position data of the information retrieval device; and using a long distance communication The technology sends the notification signal to a server. The method for activating the information retrieval device according to claim 6, wherein when the device identification code matches the destination data, the method further comprises: generating a notification signal according to the event message, the notification signal including the event message and the Information acquisition device location data; and transmitting the notification signal to a server using a long distance communication technology. The method for activating the information retrieval device according to claim 6, wherein the event message includes a time stamp, and when the surrounding device comparison table has at least a second identification code corresponding to the destination information, the method further includes: Calculate the time difference between the timestamp and the current time; compare the time difference with a time threshold; discard the event message to not perform the broadcast step of the event message when the time difference does not fall within the time threshold; and When the time difference falls within the time threshold, the broadcast step of the event message is performed. The method for activating the information retrieval device according to claim 6, wherein the event message further includes a position data of the information retrieval device, and when the surrounding device comparison table has at least one second corresponding to the destination information The identification code further includes: calculating a distance gap between the position data and a current position; comparing a distance threshold and the distance gap; when the distance gap does not fall within the distance threshold, discarding the event message so as not to Execute the broadcast step of the event message; and execute the broadcast step of the event message when the distance gap falls within the distance threshold.