CN109314758B - Data recording method, system, video and audio recorder and vehicle-mounted hard disk video recorder - Google Patents
Data recording method, system, video and audio recorder and vehicle-mounted hard disk video recorder Download PDFInfo
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- CN109314758B CN109314758B CN201780001100.8A CN201780001100A CN109314758B CN 109314758 B CN109314758 B CN 109314758B CN 201780001100 A CN201780001100 A CN 201780001100A CN 109314758 B CN109314758 B CN 109314758B
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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
- H04N5/78—Television signal recording using magnetic recording
- H04N5/781—Television signal recording using magnetic recording on disks or drums
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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
- H04N5/91—Television signal processing therefor
- H04N5/93—Regeneration of the television signal or of selected parts thereof
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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
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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
Abstract
The scheme provides a data recording method, a data recording system, a video and audio recorder and a vehicle-mounted hard disk video recorder. The data recording method comprises the following steps: the method comprises the following steps that a single-police law enforcement video and audio recorder collects first data and sends the first data to a vehicle-mounted hard disk video recorder; the vehicle-mounted hard disk video recorder collects second data and sends the second data and the received first data to a monitoring server; the monitoring server receives and records the first data and the second data; wherein the first data and the second data are associated by identification information contained in a data field. After attendance, law enforcement personnel can directly call the correlated data collected by a plurality of different devices on one monitoring server for playback, thereby avoiding searching the related data from the system servers of different devices one by one, and greatly improving the convenience of operation.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a data recording method and system, a video and audio recorder and a vehicle-mounted hard disk video recorder.
Background
When the law enforcement officers are on duty, the law enforcement officers often need to record the data of sound, images, positioning and the like of the law enforcement scene, and the data become important evidence for solving disputes and carrying out case situation inference. At present, bwc (body work camera), i.e. a single-police law enforcement video and audio recorder, is generally used to record relevant data of a law enforcement site, and at the same time, mdvr (mobile Digital video record), i.e. a vehicle-mounted hard disk recorder, is also generally used to record the site environment synchronously in order to perform omnidirectional audio and video monitoring on the law enforcement site.
However, when the attendance is over, when the law enforcement officer plays back the data recorded by the single-police law enforcement video and audio recorder and the vehicle-mounted hard disk recorder, in order to synchronously present the field data recorded by a plurality of different types of equipment at the same time, the relevant data needs to be searched one by one from the system servers corresponding to the different equipment, and the operation is very inconvenient.
Disclosure of Invention
In view of this, embodiments of the present invention provide a data recording method and system, a video/audio recorder, and a vehicle-mounted hard disk video recorder, which aim to solve the problem that data recorded by a single-police law enforcement video/audio recorder and the vehicle-mounted hard disk video recorder are inconvenient to operate when playing back the data.
The first aspect of the embodiment of the invention provides a data recording method, which is applied to a system comprising a single-police law enforcement video and audio recorder, a vehicle-mounted hard disk video recorder and a monitoring server, wherein the single-police law enforcement video and audio recorder is wirelessly connected with the vehicle-mounted hard disk video recorder, and the vehicle-mounted hard disk video recorder is wirelessly connected with the monitoring server, and the data recording method comprises the following steps:
the single-police law enforcement video and audio recorder collects first data and sends the first data to the vehicle-mounted hard disk video recorder;
the vehicle-mounted hard disk video recorder collects second data and sends the second data and the received first data to the monitoring server;
the monitoring server receives and records the first data and the second data;
wherein the first data and the second data are associated by identification information contained in a data field.
A second aspect of an embodiment of the present invention provides a data recording system, including:
the single-police law enforcement video and audio recorder is used for acquiring first data and sending the first data to the vehicle-mounted hard disk video recorder;
the vehicle-mounted hard disk video recorder is used for acquiring second data and sending the second data and the received first data to the monitoring server;
the monitoring server is used for receiving and recording the first data and the second data;
the first data and the second data are related through identification information contained in data fields, the single-police law enforcement video and audio recorder is in wireless connection with the vehicle-mounted hard disk video recorder, and the vehicle-mounted hard disk video recorder is in wireless connection with the monitoring server.
A third aspect of an embodiment of the present invention provides a single-police law enforcement video/audio recorder, including:
the first data acquisition module is used for acquiring first data;
the first data sending module is used for sending the first data to the vehicle-mounted hard disk video recorder so that the vehicle-mounted hard disk video recorder sends the second data and the first data acquired by the vehicle-mounted hard disk video recorder to the monitoring server;
the first data and the second data are related through identification information contained in a data field, and the single-police law enforcement video and audio recorder is in wireless connection with the vehicle-mounted hard disk video recorder.
A fourth aspect of an embodiment of the present invention provides a vehicle-mounted hard disk video recorder, including:
the second data acquisition module is used for acquiring second data;
the first data receiving module is used for receiving first data collected by the video and audio recorder of the single police law enforcement;
the field data sending module is used for sending the first data and the second data to a monitoring server so that the monitoring server receives and records the first data and the second data;
the first data and the second data are related through identification information contained in data fields, the single-police law enforcement video and audio recorder is in wireless connection with the vehicle-mounted hard disk video recorder, and the vehicle-mounted hard disk video recorder is in wireless connection with the monitoring server.
In the embodiment of the invention, a single-police law enforcement video and audio recorder collects first data and sends the first data to a vehicle-mounted hard disk video recorder; the vehicle-mounted hard disk video recorder collects second data and sends the second data and the received first data to the monitoring server; the monitoring server receives and records the first data and the second data; wherein the first data and the second data are associated by identification information contained in a data field. The process establishes a communication relation between the single-police law enforcement video and audio recorder and the vehicle-mounted hard disk video recorder, the data acquired by the single-police law enforcement video and audio recorder and the data acquired by the vehicle-mounted hard disk video recorder are stored in the same monitoring server, and the data acquired by different devices are associated by utilizing the identification information. After attendance, law enforcement personnel can directly call the correlated data collected by a plurality of different devices on one monitoring server for playback, thereby avoiding searching the related data from the system servers of different devices one by one, and greatly improving the convenience of operation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a flowchart of a first embodiment of a data recording method according to an embodiment of the present invention;
fig. 2 is a flowchart of a second embodiment of a data recording method according to an embodiment of the present invention;
FIG. 3 is a block diagram of one embodiment of a data recording system provided by embodiments of the present invention;
FIG. 4 is a schematic diagram of a single-police law enforcement video-audio recorder according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a vehicle-mounted hard disk video recorder according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
The video and audio recorder for single police law enforcement is an audio and video recording device which is convenient to carry about and widely applied to law enforcement departments, such as policemen and other city managers, when on duty. The vehicle-mounted hard disk video recorder is mainly used for safety monitoring of vehicles, and is generally used for omnibearing audio and video monitoring of law enforcement sites for law enforcement departments. As the single-police law enforcement video and audio recorder and the vehicle-mounted hard disk video recorder adopt different hardware coding and decoding schemes, the single-police law enforcement video and audio recorder and the vehicle-mounted hard disk video recorder are always used as two different products independently, and at present, a system integrating the two products does not exist. However, when data playback is performed, law enforcement officers need to search for relevant data from different devices, and the operation is inconvenient.
In view of this, embodiments of the present invention provide a data recording method and system, a video/audio recorder, and a vehicle-mounted hard disk video recorder, which aim to solve the problem that data recorded by a single-police law enforcement video/audio recorder and the vehicle-mounted hard disk video recorder are inconvenient to operate when playing back the data.
Referring to fig. 1, a data recording method in an embodiment of the present invention is shown, which is applied to a system including a single-alarm law enforcement video/audio recorder, a vehicle-mounted hard disk video recorder, and a monitoring server, where the single-alarm law enforcement video/audio recorder is wirelessly connected to the vehicle-mounted hard disk video recorder, and the vehicle-mounted hard disk video recorder is wirelessly connected to the monitoring server.
The data recording method of the embodiment of the invention comprises the following steps:
101. the single-police law enforcement video and audio recorder collects first data and sends the first data to the vehicle-mounted hard disk video recorder;
the single-police law enforcement video and audio recorder can be one or a plurality of single-police law enforcement video and audio recorders, and the first data can be various types of data such as audio, video, characters, images and the like. The single-police law enforcement video and audio recorder and the vehicle-mounted hard disk video recorder are connected through a wireless network, such as WIFI or Bluetooth, and after a certain single-police law enforcement video and audio recorder is connected to the vehicle-mounted hard disk video recorder, the single-police law enforcement video and audio recorder can be regarded as one of ordinary video channels of the vehicle-mounted hard disk video recorder, namely seamless integration of the single-police law enforcement video and audio recorder and the vehicle-mounted hard disk video recorder is achieved. When the single-police law enforcement video and audio recorder is in communication connection with the vehicle-mounted hard disk video recorder, the single-police law enforcement video and audio recorder can transmit the data acquired by the single-police law enforcement video and audio recorder to the vehicle-mounted hard disk video recorder for storage, so that the vehicle-mounted hard disk video recorder can play back the data acquired through a video channel of the single-police law enforcement video and audio recorder together with the received data sent by the single-police law enforcement video and audio recorder during data playback, and synchronous playback of associated data is realized.
Based on single police law enforcement audio and video recorder need transmit great data such as video to on-vehicle hard disk video recorder, preferably adopt WIFI to connect between them. However, WIFI connections also have certain limitations, such as being susceptible to various signal interferences. When the single-police law enforcement video and audio recorder is disconnected with the vehicle-mounted hard disk video recorder, the single-police law enforcement video and audio recorder independently collects data, and after reconnection, the single-police law enforcement video and audio recorder sends unsent data to the vehicle-mounted hard disk video recorder for storage.
Further, in order to improve the stability of communication, the single-police law enforcement video and audio recorder and the vehicle-mounted hard disk video recorder are connected through a 2.4G/5G dual-band designed WIFI, and the data recording method may further include:
the single-police law enforcement video and audio recorder acquires on-site environmental information and signal interference intensity, wherein the environmental information comprises the volume of a barrier hindering WIFI signal transmission;
when the volume of the obstacle obstructing the WIFI signal transmission is larger than a first threshold value or the signal interference intensity is smaller than a second threshold value, the single-police law enforcement video and audio recorder is connected with the vehicle-mounted hard disk video recorder through a WIFI signal of a 2.4G frequency band;
when the volume of the obstacle obstructing the WIFI signal transmission is smaller than a first threshold value or the signal interference intensity is larger than a second threshold value, the single-police law enforcement video and audio recorder is connected with the vehicle-mounted hard disk video recorder through a WIFI signal of a 5G frequency band.
For the WIFI signal of 2.4G frequency band, its ability to penetrate through the barrier is strong, but because a large amount of equipment all use the signal of this frequency band, the signal that receives is disturbed more. For the WIFI signal of 5G frequency band, the capability of penetrating the obstacle is poor, but the signal interference is less. Therefore, the WIFI signal frequency band between the single-alarm law enforcement video and audio recorder and the vehicle-mounted hard disk video recorder is switched according to the on-site environmental information and the signal interference intensity, and the stability of communication connection can be effectively improved.
Further, the data recording method may further include:
the single police law enforcement video and audio recorder acquires attendance registration information and sends the attendance registration information to the vehicle-mounted hard disk video recorder.
In the vehicle-mounted hard disk video recorder in the prior art, a set of UI (user interface) is generally required to be designed, or similar attendance checking equipment and software functions such as RFC card swiping and the like are adopted, and related personnel need to register on the vehicle-mounted hard disk video recorder when going out. However, in this way, there is a high possibility that the relevant person forgets to register on the in-vehicle hard disk recorder. In the embodiment of the invention, even if the relevant personnel forget to register on the vehicle-mounted hard disk video recorder, the attendance registration information can still be input through the portable single-police law enforcement video and audio recorder, the attendance registration is automatically carried out on the vehicle-mounted hard disk video recorder by the single-police law enforcement video and audio recorder, and the phenomenon of incomplete evidence caused by missed attendance registration can be avoided.
102. The vehicle-mounted hard disk video recorder collects second data and sends the second data and the received first data to the monitoring server;
the second data is any data acquired by the vehicle-mounted hard disk video recorder through a video channel of the vehicle-mounted hard disk video recorder, and is generally audio and video data of a data acquisition site. The monitoring server is a remote terminal server, such as a system platform with related application software in a law enforcement center. The vehicle-mounted hard disk video recorder is connected with the monitoring server through a wireless network, such as WIFI, 3G or 4G. The vehicle-mounted hard disk video recorder can upload data stored by the vehicle-mounted hard disk video recorder to the monitoring server in real time, and the vehicle-mounted hard disk video recorder comprises second data collected by the vehicle-mounted hard disk video recorder and first data acquired from the single-police law enforcement video and audio recorder.
103. And the monitoring server receives and records the first data and the second data.
The monitoring server can receive and record the first data and the second data uploaded by the vehicle-mounted hard disk video recorder, and can also monitor the vehicle-mounted hard disk video recorder and the single-police law enforcement video and audio recorder in real time, so that remote command is realized, and the field condition is integrally controlled. Wherein the first data and the second data are associated by identification information contained in a data field. Specifically, the identification information may be common information of data collected by the vehicle-mounted hard disk video recorder and the single-police law enforcement video and audio recorder, and may include information such as law enforcement officer number, device number, license plate number, time, and the like. After the data collected by different devices are associated through the identification information, the monitoring server can accurately distinguish different data corresponding to each event, and a complete data chain of each event is formed.
Specifically, the first data and the second data may be associated through the following steps:
and after receiving the first data, the vehicle-mounted hard disk video recorder acquires the identification information of the first data, and associates the second data which meets a certain condition between the identification information in the acquired second data and the identification information of the first data with the first data.
And if the identification information of the first data and the identification information of the second data meet certain conditions, the first data and the second data are related to each other. The certain condition may be that the identification information is completely the same, or the identification information contains partially the same content, for example, different data with the same law enforcement officer number and license plate number may be associated, or different data with the same acquisition time may be associated.
Further, the data recording method may further include:
and after the monitoring server obtains a data playback instruction, displaying the associated first data and second data in the same display interface.
In the data playback stage, related personnel can input a data playback instruction on the monitoring server, namely all data related to a specified event can be viewed in the same display interface. In practical application, a display interface of the terminal may be divided into a plurality of display areas, each display area displays specified data collected by a specified device, and the content displayed in each display area in the same time period may be data related to each other. For example, all audio, video, positioning information, event marks, text descriptions and other data which are related to a certain specified event, collected by a single-police law enforcement video-audio recorder or a vehicle-mounted hard disk video recorder and located in a specified time period are displayed in the same display interface, so that related personnel can investigate the specified event conveniently.
Further, the data recording method may further include:
and the single-police law enforcement video and audio recorder directly sends the first data to the monitoring server.
When the single-police law enforcement video and audio recorder in the prior art uploads data to a server, the data is generally accessed to a collection station through a USB interface, and then the data is uploaded to the server through the collection station in a network port connection mode and the like. Although the USB interface is relatively general, the USB access may cause a problem that the device cannot be identified, and the cost for setting the acquisition station is high. After the single-police law enforcement video and audio recorder is successfully connected with the server, the single-police law enforcement video and audio recorder is equivalent to a common storage medium of the server, and therefore the server needs to install corresponding data playback software to play back data collected by the single-police law enforcement video and audio recorder.
In the embodiment of the invention, the single-police law enforcement video and audio recorder can be directly communicated with the server, for example, the single-police law enforcement video and audio recorder can be directly connected with the server through WIFI, the server can access the single-police law enforcement video and audio recorder through an IP address, and then the data of the single-police law enforcement video and audio recorder can be played back through a browser and other modes without installing data playback software. Or, some charging bases with internet access can be preset, the single-police law enforcement video and audio recorder adopts a stitch type internet access to be inserted into the charging bases, and the charging bases are connected into the server through the internet access, so that the connection between the single-police law enforcement video and audio recorder and the server is established. No matter which mode is adopted, the invention does not need to arrange a collecting station, thereby greatly reducing the cost.
In the embodiment of the invention, a single-police law enforcement video and audio recorder collects first data and sends the first data to a vehicle-mounted hard disk video recorder; the vehicle-mounted hard disk video recorder collects second data and sends the second data and the received first data to the monitoring server; the monitoring server receives and records the first data and the second data; wherein the first data and the second data are associated by identification information contained in a data field. The process establishes a communication relation between the single-police law enforcement video and audio recorder and the vehicle-mounted hard disk video recorder, the data acquired by the single-police law enforcement video and audio recorder and the data acquired by the vehicle-mounted hard disk video recorder are stored in the same monitoring server, and the data acquired by different devices are associated by utilizing the identification information. After attendance, law enforcement personnel can directly call the correlated data collected by a plurality of different devices on one monitoring server for playback, thereby avoiding searching the related data from the system servers of different devices one by one, and greatly improving the convenience of operation.
Referring to fig. 2, another data recording method in the embodiment of the present invention is shown, which is applied to a system including a vehicle-mounted hard disk recorder, a monitoring server, and more than two single-alarm law enforcement video and audio recorders, where the single-alarm law enforcement video and audio recorders are wirelessly connected to the vehicle-mounted hard disk recorder, and the vehicle-mounted hard disk recorder is wirelessly connected to the monitoring server.
The data recording method of the embodiment of the invention comprises the following steps:
201. the more than two single-police law enforcement video and audio recorders acquire first data and send the first data to the vehicle-mounted hard disk video recorder;
step 201 is the same as step 101, and please refer to the related description of step 101.
202. The vehicle-mounted hard disk video recorder collects second data and sends the second data and the received first data to the monitoring server;
step 202 is the same as step 102, and please refer to the related description of step 102.
203. The monitoring server receives and records the first data and the second data;
step 203 is the same as step 103, and please refer to the related description of step 103.
204. When starting data acquisition, any one of the more than two single-police law enforcement video and audio recorders sends a starting instruction to the vehicle-mounted hard disk video recorder so as to enable the vehicle-mounted hard disk video recorder to start data acquisition;
in the embodiment of the invention, when starting data acquisition, any one of the more than two single-police law enforcement video and audio recorders can send a starting instruction to the vehicle-mounted hard disk video recorder so as to enable the vehicle-mounted hard disk video recorder to start data acquisition. Through setting up like this, can guarantee when gathering important data that each relevant equipment can both in time start, realize that the on-the-spot all-round information of incident is recorded, avoid important information's omission.
However, there may be a disruption in the communication between the on-board hard disk recorder and the single-police law enforcement video and audio recorder. If communication interruption occurs, the vehicle-mounted hard disk video recorder cannot receive the starting instruction, at this time, in order to avoid data omission, the data pre-recording function of the vehicle-mounted hard disk video recorder and the single-alarm law enforcement video and audio recorder can be utilized, the data pre-recording function is a function of pre-recording data with a certain duration, and if the certain duration is 1 hour, the pre-recorded data within 1 hour before the current time can be stored when the equipment starts data acquisition.
Further, in order to avoid data omission, the data recording method may further include:
if the communication between the any one single-alarm law enforcement video and audio recorder at the time point of starting data acquisition and the vehicle-mounted hard disk video recorder is interrupted, so that the vehicle-mounted hard disk video recorder cannot receive the starting instruction, when the communication is recovered, the any one single-alarm law enforcement video and audio recorder sends the time point to the vehicle-mounted hard disk video recorder, so that the vehicle-mounted hard disk video recorder stores the pre-recorded data after the time point and starts data acquisition.
Obviously, by utilizing the data pre-recording function of the vehicle-mounted hard disk video recorder, even if the vehicle-mounted hard disk video recorder cannot start data acquisition in time due to communication interruption, normal acquisition of data after the time point can be ensured, and important data omission is avoided.
205. When the vehicle-mounted hard disk video recorder starts data acquisition, a starting instruction is sent to the more than two single-police law enforcement video and audio recorders, so that the more than two single-police law enforcement video and audio recorders start data acquisition.
In the embodiment of the invention, when the data acquisition is started, the vehicle-mounted hard disk video recorder can send a starting instruction to the more than two single-police law enforcement video and audio recorders so as to start the data acquisition of the more than two single-police law enforcement video and audio recorders. Through setting up like this, can guarantee when gathering important data that each relevant equipment can both in time start, realize that the on-the-spot all-round information of incident is recorded, avoid important information's omission.
Also, in order to avoid data omission, the data recording method may further include:
if the communication of the vehicle-mounted hard disk video recorder at the time point of starting data acquisition and more than one single-alarm law enforcement video and audio recorder in the more than two single-alarm law enforcement video and audio recorders is interrupted, so that the more than one single-alarm law enforcement video and audio recorder cannot receive the starting instruction, when the communication is recovered, the vehicle-mounted hard disk video recorder sends the time point to the more than one single-alarm law enforcement video and audio recorder, so that the more than one single-alarm law enforcement video and audio recorder stores the prerecorded data after the time point and starts data acquisition.
Obviously, by utilizing the data pre-recording function of the single-alarm law enforcement video and audio recorder, even if the communication interruption occurs to cause that the single-alarm law enforcement video and audio recorder cannot start data acquisition in time, the normal acquisition of the data after the time point can be ensured, and the omission of important data is avoided.
In the embodiment of the invention, more than two single-police law enforcement video and audio recorders acquire first data and send the first data to the vehicle-mounted hard disk video recorder; the vehicle-mounted hard disk video recorder collects second data and sends the second data and the received first data to the monitoring server; the monitoring server receives and records the first data and the second data; when starting data acquisition, any one of the more than two single-police law enforcement video and audio recorders sends a starting instruction to the vehicle-mounted hard disk video recorder so as to enable the vehicle-mounted hard disk video recorder to start data acquisition; when the vehicle-mounted hard disk video recorder starts data acquisition, a starting instruction is sent to the more than two single-police law enforcement video and audio recorders, so that the more than two single-police law enforcement video and audio recorders start data acquisition. The process establishes a communication relation between the single-police law enforcement video and audio recorder and the vehicle-mounted hard disk video recorder, the data acquired by the single-police law enforcement video and audio recorder and the data acquired by the vehicle-mounted hard disk video recorder are stored in the same monitoring server, and the data acquired by different devices are associated by utilizing the identification information. After attendance, law enforcement personnel can directly call the correlated data collected by a plurality of different devices on one monitoring server for playback, thereby avoiding searching the related data from the system servers of different devices one by one, and greatly improving the convenience of operation. And when one of the single-police law enforcement video and audio recorder and the vehicle-mounted hard disk video recorder starts data acquisition, the device can inform other devices of starting data acquisition in time, thus realizing the recording of all-round information of an event site and avoiding the omission of important information.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
The above mainly describes a data recording method, and a data recording system will be described below.
Referring to fig. 3, an embodiment of a data recording system according to the embodiment of the present invention includes:
the single-police law enforcement video and audio recorder 301 is used for collecting first data and sending the first data to the vehicle-mounted hard disk video recorder;
the vehicle-mounted hard disk video recorder 302 is used for acquiring second data and sending the second data and the received first data to the monitoring server;
the monitoring server 303 is configured to receive and record the first data and the second data;
the first data and the second data are related through identification information contained in data fields, the single-police law enforcement video and audio recorder is in wireless connection with the vehicle-mounted hard disk video recorder, and the vehicle-mounted hard disk video recorder is in wireless connection with the monitoring server.
Further, the single-police law enforcement video and audio recorder is connected with the vehicle-mounted hard disk video recorder through a 2.4G/5G dual-band designed WIFI, and the single-police law enforcement video and audio recorder can also be used for:
acquiring on-site environment information and signal interference strength, wherein the environment information comprises the volume of an obstacle obstructing WIFI signal transmission;
when the volume of the obstacle obstructing the WIFI signal transmission is larger than a first threshold value or the signal interference intensity is smaller than a second threshold value, connecting the WIFI signal of a 2.4G frequency band with the vehicle-mounted hard disk video recorder;
when the size of the obstacle obstructing the WIFI signal transmission is smaller than a first threshold value or the signal interference intensity is larger than a second threshold value, the WIFI signal passing through a 5G frequency band is connected with the vehicle-mounted hard disk video recorder.
Further, the vehicle-mounted hard disk video recorder may be further configured to, after receiving the first data, obtain identification information of the first data, and associate second data that meets a certain condition between the identification information of the first data and the identification information of the second data that has been collected with the first data;
the monitoring server can be further used for displaying the associated first data and the associated second data in the same display interface after the data playback instruction is obtained.
Referring to fig. 4, an embodiment of a single-police law enforcement video-audio recorder according to the present invention includes:
a first data acquisition module 401, configured to acquire first data;
a first data sending module 402, configured to send the first data to a vehicle-mounted hard disk video recorder, so that the vehicle-mounted hard disk video recorder sends second data acquired by the vehicle-mounted hard disk video recorder and the first data to a monitoring server;
the first data and the second data are related through identification information contained in a data field, and the single-police law enforcement video and audio recorder is in wireless connection with the vehicle-mounted hard disk video recorder.
Referring to fig. 5, an embodiment of a vehicle-mounted hard disk recorder according to an embodiment of the present invention includes:
a second data acquisition module 501, configured to acquire second data;
the first data receiving module 502 is used for receiving first data collected by the video and audio recorder of the single-police law enforcement;
a field data sending module 503, configured to send the first data and the second data to a monitoring server, so that the monitoring server receives and records the first data and the second data;
the first data and the second data are related through identification information contained in data fields, the single-police law enforcement video and audio recorder is in wireless connection with the vehicle-mounted hard disk video recorder, and the vehicle-mounted hard disk video recorder is in wireless connection with the monitoring server.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (7)
1. A data recording method is characterized by being applied to a system comprising a single-police law enforcement video and audio recorder, a vehicle-mounted hard disk video recorder and a monitoring server, wherein the single-police law enforcement video and audio recorder is connected with the vehicle-mounted hard disk video recorder through WIFI designed in a 2.4G/5G dual-band mode, the vehicle-mounted hard disk video recorder is wirelessly connected with the monitoring server, and the data recording method comprises the following steps:
the single-police law enforcement video and audio recorder collects first data and sends the first data to the vehicle-mounted hard disk video recorder;
the single-police law enforcement video and audio recorder acquires on-site environmental information and signal interference intensity, wherein the environmental information comprises the volume of a barrier hindering WIFI signal transmission;
when the volume of the obstacle obstructing the WIFI signal transmission is larger than a first threshold value or the signal interference intensity is smaller than a second threshold value, the single-police law enforcement video and audio recorder is connected with the vehicle-mounted hard disk video recorder through a WIFI signal of a 2.4G frequency band;
when the volume of the obstacle obstructing the WIFI signal transmission is smaller than a first threshold value or the signal interference intensity is larger than a second threshold value, the single-police law enforcement video and audio recorder is connected with the vehicle-mounted hard disk video recorder through a WIFI signal of a 5G frequency band;
the vehicle-mounted hard disk video recorder collects second data and sends the second data and the received first data to the monitoring server;
the monitoring server receives and records the first data and the second data;
wherein the first data and the second data are associated by identification information contained in a data field.
2. The data recording method of claim 1, wherein the first data and the second data are associated by:
after receiving the first data, the vehicle-mounted hard disk video recorder acquires identification information of the first data, and associates second data meeting a certain condition between the identification information in the acquired second data and the identification information of the first data with the first data;
after the monitoring server receives and records the first data and the second data, the data recording method further comprises:
and after the monitoring server obtains a data playback instruction, displaying the associated first data and second data in the same display interface.
3. The data recording method of claim 1 or 2, wherein the system comprises more than two single-police law enforcement audio and video recorders, the data recording method further comprising:
when starting data acquisition, any one of the more than two single-police law enforcement video and audio recorders sends a starting instruction to the vehicle-mounted hard disk video recorder so as to enable the vehicle-mounted hard disk video recorder to start data acquisition;
when the vehicle-mounted hard disk video recorder starts data acquisition, a starting instruction is sent to the more than two single-police law enforcement video and audio recorders, so that the more than two single-police law enforcement video and audio recorders start data acquisition.
4. The data recording method as claimed in claim 3, wherein the single-police law enforcement video and audio recorder and the vehicle hard disk recorder each have a function of prerecording data for a certain period of time, the data recording method further comprising:
if the communication between any one single-alarm law enforcement video and audio recorder and the vehicle-mounted hard disk video recorder at the time point of starting data acquisition is interrupted, so that the vehicle-mounted hard disk video recorder cannot receive the starting instruction, when the communication is recovered, the any one single-alarm law enforcement video and audio recorder sends the time point to the vehicle-mounted hard disk video recorder, so that the vehicle-mounted hard disk video recorder stores pre-recorded data after the time point and starts data acquisition;
if the communication of the vehicle-mounted hard disk video recorder at the time point of starting data acquisition and more than one single-alarm law enforcement video and audio recorder in the more than two single-alarm law enforcement video and audio recorders is interrupted, so that the more than one single-alarm law enforcement video and audio recorder cannot receive the starting instruction, when the communication is recovered, the vehicle-mounted hard disk video recorder sends the time point to the more than one single-alarm law enforcement video and audio recorder, so that the more than one single-alarm law enforcement video and audio recorder stores the prerecorded data after the time point and starts data acquisition.
5. A data recording system, comprising:
the single-police law enforcement video and audio recorder is used for acquiring first data and sending the first data to the vehicle-mounted hard disk video recorder; acquiring on-site environment information and signal interference strength, wherein the environment information comprises the volume of an obstacle obstructing WIFI signal transmission; when the volume of the obstacle obstructing the WIFI signal transmission is larger than a first threshold value or the signal interference intensity is smaller than a second threshold value, connecting the WIFI signal of a 2.4G frequency band with the vehicle-mounted hard disk video recorder; when the volume of the obstacle obstructing the WIFI signal transmission is smaller than a first threshold value or the signal interference intensity is larger than a second threshold value, connecting the WIFI signal with the vehicle-mounted hard disk video recorder through a 5G frequency band;
the vehicle-mounted hard disk video recorder is used for acquiring second data and sending the second data and the received first data to the monitoring server;
the monitoring server is used for receiving and recording the first data and the second data;
the first data and the second data are related through identification information contained in a data field, the single-police law enforcement video and audio recorder is connected with the vehicle-mounted hard disk video recorder through WIFI designed in a 2.4G/5G dual-band mode, and the vehicle-mounted hard disk video recorder is wirelessly connected with the monitoring server.
6. The data recording system of claim 5, wherein:
the vehicle-mounted hard disk video recorder is further used for acquiring identification information of the first data after receiving the first data, and associating second data which meet certain conditions between the identification information in the acquired second data and the identification information of the first data with the first data;
the monitoring server is further used for displaying the associated first data and the associated second data in the same display interface after the data playback instruction is obtained.
7. A single-police law enforcement audio-visual recorder, comprising:
the first data acquisition module is used for acquiring first data;
the first data sending module is used for sending the first data to the vehicle-mounted hard disk video recorder so that the vehicle-mounted hard disk video recorder sends the second data and the first data acquired by the vehicle-mounted hard disk video recorder to the monitoring server;
the system comprises a field environment information acquisition module, a signal interference intensity acquisition module and a WIFI signal transmission module, wherein the field environment information acquisition module is used for acquiring field environment information and signal interference intensity, and the environment information comprises the volume of an obstacle which obstructs WIFI signal transmission;
the first connection module is used for connecting the single-police law enforcement video and audio recorder with the vehicle-mounted hard disk video recorder through a WIFI signal of a 2.4G frequency band when the volume of the obstacle obstructing the WIFI signal transmission is larger than a first threshold value or the signal interference intensity is smaller than a second threshold value;
the second connection module is used for connecting the single-police law enforcement video and audio recorder with the vehicle-mounted hard disk video recorder through a WIFI signal of a 5G frequency band when the volume of the obstacle obstructing the WIFI signal transmission is smaller than a first threshold value or the signal interference intensity is larger than a second threshold value;
the first data and the second data are related through identification information contained in a data field, and the single-police law enforcement video and audio recorder is connected with the vehicle-mounted hard disk video recorder through WIFI designed in a 2.4G/5G dual-band mode.
Applications Claiming Priority (1)
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| PCT/CN2017/103486 WO2019061026A1 (en) | 2017-09-26 | 2017-09-26 | Data recording method, system, video and audio recorder and vehicle-mounted hard disk video recorder |
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| CN109314758A CN109314758A (en) | 2019-02-05 |
| CN109314758B true CN109314758B (en) | 2021-01-12 |
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| CN110083392B (en) * | 2019-03-20 | 2022-06-14 | 深圳趣唱科技有限公司 | Audio awakening pre-recording method, storage medium, terminal and Bluetooth headset thereof |
| CN111314992B (en) * | 2020-02-11 | 2022-04-19 | 浙江大华技术股份有限公司 | Connection method and device of hotspot module and broadcasting method and device of hotspot list |
| CN114500899A (en) * | 2022-02-15 | 2022-05-13 | 深圳法翼软件技术有限公司 | Bilateral cooperative work system and method based on real-time video |
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| CN109314758A (en) | 2019-02-05 |
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