Intelligent cooperative security and protection system

Abstract

The invention provides an intelligent cooperative security and protection system, and relates to the technical field of security and protection, cooperative terminal equipment is deployed in each target area, the cooperative terminal equipment is used to monitor the target area in real time to obtain monitoring data, an alarm cloud Internet of Things platform establishes wireless communication connection with the cooperative terminal equipment, and the alarm cloud Internet of Things platform establishes wireless communication connection with the cooperative terminal equipment. The cooperation terminal device sends monitoring data to the police cloud Internet of Things platform through wireless communication connection, analyzes the monitoring data, notifies the alarm and sends an alarm signal by the alarm when monitoring an abnormal condition, and the intelligent cooperation terminal establishes communication connection with other intelligent cooperation terminals and intelligent cooperation platforms for mutual communication. And the intelligent connection and collaboration platform remotely controls the collaboration terminal equipment and the police cloud intelligent connection terminal and stores related information. According to the invention, the security and protection system has the advantages of rapid deployment, low-cost maintenance, high-efficiency multi-point cooperation and rapid response to emergency situations.

Description

Technical Field

[0001] The present application relates to the field of security technology, and specifically to an intelligent collaborative security system. Background Art

[0002] With the acceleration of urbanization and the improvement of public safety needs, traditional security systems can no longer meet the needs of modern security. In addition, the response speed and coordination capabilities of traditional security systems in emergency situations are limited, so it is necessary to propose a security system that can achieve rapid deployment, low-cost maintenance, efficient multi-point coordination and rapid response to emergencies.

[0003] The Chinese invention application with publication number CN112187940A provides a security monitoring system based on the Internet of Things, including: a field parameter detection network, a system health self-check unit, a video intelligent monitoring unit, an information transmission unit, a field maintenance terminal and a visual centralized monitoring platform; the field parameter detection network is used to form a front-end environmental information and object and personnel location information detection network; the system health self-check unit is used to perform system periodic self-checks and form self-check reports; the video intelligent monitoring unit is used to monitor the entry and exit of personnel at the entrance, the flow of people in a specific area, and abnormal behavior of personnel; the information transmission unit is used to transmit detection data and control instructions; the field maintenance terminal includes an information collection and retention control module, a priority judgment module, and a dual-mode supply module; the visual centralized monitoring platform is used to receive detection data and perform visual management. In addition, the Chinese invention application with publication number CN117176758A discloses an offline power equipment safety alarm management system based on the Internet of Things, which involves the field of alarm management technology. It includes computers, cloud platforms, intelligent acquisition terminals, data collection and fusion devices, LORA gateways, alarms and other equipment. The system is built according to the framework of perception layer-transmission layer-application layer. The perception layer is composed of intelligent acquisition terminals and control terminals. The acquisition terminals include various sensors such as voltage sensors, current sensors, vibration sensors, and video collectors; the control terminals include relays and other equipment; the transmission layer includes data fusion processors and LORA gateways; the application layer is composed of cloud platforms, databases, and computers. However, the above invention applications do not consider how to improve data transmission efficiency when the amount of data is large. Based on this, a new technical solution is needed. Summary of the invention

[0004] In view of this, an embodiment of the present specification provides an intelligent collaborative security system.

[0005] The embodiments of this specification provide the following technical solutions: The collaborative terminal equipment includes fixed cameras, mobile monitoring equipment, and sensors. Based on the regional characteristics of each target area, the collaborative terminal equipment is deployed in each target area, and the collaborative terminal equipment is used to monitor the target area in real time to obtain monitoring data. A police cloud IoT platform is set for the target area, and the optimal transmission speed with the police cloud IoT platform is obtained. The monitoring data is sent to the police cloud IoT platform based on the optimal transmission speed; The police cloud IoT platform obtains the best transmission speed with the collaborative terminal device at a preset first time interval, and after establishing a wireless communication connection with the collaborative terminal device, the collaborative terminal device sends the monitoring data to the police cloud IoT platform based on the best transmission speed through the wireless communication connection. The police cloud IoT platform analyzes the monitoring data, and when an abnormal situation is monitored, notifies the alarm device and the alarm device sends an alarm signal, and also sends the monitoring data to the intelligent collaborative platform in real time; The intelligent collaborative terminal establishes a communication connection with other intelligent collaborative terminals and the intelligent collaborative platform to communicate with each other. The intelligent collaborative terminal is provided with a satellite positioning device, which can obtain the location information of the intelligent collaborative terminal at any time. The intelligent collaborative terminal also sends the location information to the intelligent collaborative platform in real time; The intelligent collaborative platform remotely controls the collaborative terminal device and the police cloud intelligent terminal, and also obtains various relevant information of the collaborative terminal device and the police cloud intelligent terminal. The police cloud alarm platform saves the received relevant information. The intelligent collaborative platform can also establish an emergency response group to achieve real-time information communication and information sharing through the intelligent collaborative terminal.

[0006] Preferably, the collaborative terminal device is configured as follows: the collaborative terminal device divides the monitoring data into multiple sub-data, and numbers the multiple sub-data in sequence, and packages the sub-data and the corresponding numbers to generate multiple sub-data packets. When each collaborative terminal device sends the sub-data packet to the Police Cloud IoT platform, it pre-determines whether itself and the corresponding Police Cloud IoT platform can directly establish a wireless communication connection. If not, the collaborative terminal device sends the sub-data packet to the relay node closest to the collaborative terminal device, and sends multiple sub-data packets to the relay node. After receiving the sub-data packet, the relay node forwards the sub-data packet to the Police Cloud IoT platform. If possible, the collaborative terminal device sends the monitoring data directly to the Police Cloud IoT platform.

[0007] Preferably, the relay node is configured as follows: the collaborative terminal device simultaneously sends multiple sub-packets to the relay node in a concurrent manner; after receiving the sub-packets, the relay node sends the multiple sub-packets to the police cloud IoT platform in sequence through the selected first communication line in the order of the received sub-packets; in the process of forwarding the sub-packets, the relay node also periodically determines whether the first communication line is still the optimal communication line; if so, continues to use the first communication line to forward the sub-packets; if not, selects a new optimal communication line as the new first communication line, and forwards the sub-packets through the new first communication line.

[0008] Preferably, the relay node is configured to select the first communication line in the following manner: before the relay node sends the data packet to the police cloud IoT platform, the relay node sets a first value, a second value and a third value, the relay node generates first data, and sends the first data N times to the police cloud IoT platform via multiple communication lines, and the number of repeated transmissions N is the first value. After receiving the first data, the police cloud IoT platform obtains all the first data received from the same communication line. If all the first data are the same, the communication line is retained as an alternative communication line, and then all the alternative communication lines are obtained, and the alternative communication line with the shortest communication time is selected as the first communication line.

[0009] Preferably, the relay node is configured as follows: in the absence of the alternative communication line, the relay node repeatedly sends the first data M times to the police cloud IoT platform through multiple communication lines again, and the number of repeated transmissions M is the second value minus the first value. After receiving the first data, the police cloud IoT platform counts the number of errors of each communication line, obtains the first alternative communication line with the least number of errors and the second alternative communication line with the second least number of errors, and also obtains the first communication time of the first alternative communication line and the second communication time of the second alternative communication line. If the first communication time is less than the second communication time, the first alternative communication line is used as the first communication line. If the first communication time is greater than or equal to the second communication time, the time difference between the first communication time and the second communication time is determined. If the time difference is greater than a preset first threshold, the second alternative communication line is used as the first communication line, otherwise the first alternative communication line is used as the first communication line.

[0010] Preferably, the police cloud IoT platform is configured as follows: before the police cloud IoT platform communicates with the collaborative terminal device, it sends multiple different transmission speeds to the collaborative terminal device, and the collaborative terminal device transmits a predetermined number of sub-data packets at different transmission speeds. After receiving the sub-data packets, the police cloud IoT platform detects the sub-data packets transmitted at different transmission speeds, obtains the packet loss rates corresponding to the different transmission speeds, obtains all the transmission speeds with a packet loss rate less than or equal to a preset second threshold, selects the transmission speed with the largest value as the optimal transmission speed, sends the optimal transmission speed to the collaborative terminal device, and the collaborative terminal device sends the sub-data packets at the optimal transmission speed. Repeat this step every preset first time period to redetermine the optimal transmission speed.

[0011] Preferably, the Police Cloud IoT platform is configured as follows: after receiving the first sub-packet, the Police Cloud IoT platform obtains the number of the first sub-packet as the minimum number, and after a preset second period of time, obtains the maximum value of the numbers of all the received sub-packets as the maximum number, and determines whether all the sub-packets between the minimum number and the maximum number have been received; if not, obtains the number of the sub-packet that has not been received as the lost number, and sends the lost number to the collaborative terminal device, which resends the sub-packet corresponding to the lost number; after receiving all the sub-packets corresponding to the lost numbers, uses the maximum number as the new minimum number, updates the maximum number every time the second period of time has passed, and repeats this step until the Police Cloud IoT platform has received all the sub-packets.

[0012] Preferably, the intelligent collaborative terminal is configured to: establish a communication connection with a wearable device to obtain human body indicators in real time, automatically trigger an alarm when an abnormal situation is detected, and issue a human-machine separation warning when no human body indicators can be obtained.

[0013] Compared with the prior art, the at least one technical solution adopted in the embodiments of this specification can achieve the following beneficial effects: The target area is monitored through collaborative terminal devices, and a wireless communication connection is established with the Police Cloud IoT platform. The monitoring data is divided into multiple sub-packets, and the acquired sub-packets are sent to the Police Cloud IoT platform through the wireless communication connection. When the Police Cloud IoT platform cannot be connected, the sub-packets are forwarded through the relay node, and communication is carried out with the relay node in a concurrent manner. After receiving the sub-packet, the relay node selects the optimal communication line to send the sub-packet to the Police Cloud IoT platform, further improving the efficiency of communication. After receiving the sub-packet, the Police Cloud IoT platform also detects whether there is any lost sub-packet based on the number, and resends the lost sub-packet in a targeted manner. It also manages relevant personnel through the intelligent collaborative terminal, manages each intelligent collaborative terminal through the intelligent collaborative platform, quickly establishes an emergency response group, and improves the response speed and processing capabilities in emergency situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of an embodiment of an intelligent collaborative security system in the embodiment of the present application. DETAILED DESCRIPTION

[0016] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0017] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0018] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0019] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0020] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0021] For ease of understanding, the following describes the intelligent collaborative security system in the embodiment of the present application. Figure 1 In an embodiment of the present application, a smart collaborative security system includes the following modules: Collaborative terminal devices, including fixed cameras, mobile monitoring devices, and sensors, are deployed in each target area based on the regional characteristics of each target area. The collaborative terminal devices are used to monitor the target area in real time to obtain monitoring data. A police cloud IoT platform is set up for the target area to obtain the optimal transmission speed with the police cloud IoT platform, and the monitoring data is sent to the police cloud IoT platform based on the optimal transmission speed.

[0022] Specifically, in order to carry out intelligent monitoring of the target area, multiple collaborative terminal devices are deployed in the target area. The collaborative terminal devices include a variety of different monitoring devices to obtain real-time monitoring data of the target area. Since the main function of the collaborative terminal devices is to monitor the target area, the memory space of the collaborative terminal devices is relatively small and cannot store more monitoring data. Therefore, a police cloud IoT platform is set up for each target area. The police cloud IoT platform is equivalent to a remote server. Each collaborative terminal device establishes a wireless communication connection with the system terminal device in the target area, and regularly sends the acquired monitoring data to the police cloud IoT platform. Before sending the monitoring data to the police cloud IoT platform, the optimal transmission speed with the police cloud IoT platform is obtained, and the monitoring data is sent based on the optimal transmission speed.

[0023] The Police Cloud IoT Platform obtains the optimal transmission speed with the collaborative terminal devices at preset first time intervals. After establishing a wireless communication connection with the collaborative terminal devices, the collaborative terminal devices send the monitoring data to the Police Cloud IoT Platform based on the optimal transmission speed via the wireless communication connection. The Police Cloud IoT Platform analyzes the monitoring data, and when an abnormal situation is monitored, it notifies the alarm and the alarm sends an alarm signal. It also sends the monitoring data to the Intelligent Collaborative Platform in real time.

[0024] Specifically, before establishing a communication connection with the collaborative terminal device, the Police Cloud IoT Platform also obtains the optimal transmission speed with the collaborative terminal device and communicates with the collaborative terminal device at the optimal transmission speed. Since the network environment is constantly changing, in order to adapt to changes in the network environment, the optimal transmission speed is dynamically adjusted during the communication process to optimize the communication efficiency and quality with the collaborative terminal device and reduce data loss. After the Police Cloud IoT Platform establishes a wireless communication connection with each collaborative terminal device, it receives the monitoring data sent by each collaborative terminal device. In the process of receiving the monitoring data, it also detects the received monitoring data to determine whether the monitoring data is lost during the transmission process. If lost, the information corresponding to the lost monitoring data is sent to the collaborative terminal device, which is resent by the collaborative terminal device to ensure that the Police Cloud IoT Platform receives complete data. The Police Cloud IoT Platform also analyzes the monitoring data. When an abnormal situation is detected, such as black smoke is emitted from a certain location or the fence and access control of the safe area are violently broken, the alarm is notified to send an alarm signal to notify relevant staff to take corresponding measures. The Police Cloud IoT Platform also sends the monitoring data to the Intelligent Collaborative Platform in real time.

[0025] The intelligent collaborative terminal establishes communication connections with other intelligent collaborative terminals and intelligent collaborative platforms to communicate with each other. The intelligent collaborative terminal is equipped with a satellite positioning device, which can obtain the location information of the intelligent collaborative terminal at any time. The intelligent collaborative terminal also sends the location information to the intelligent collaborative platform in real time.

[0026] Specifically, in order to more conveniently manage relevant personnel such as security personnel, and to be able to obtain various information of security personnel in a timely manner, intelligent collaborative terminals are distributed to relevant personnel. Relevant staff can communicate with each other through the intelligent collaborative terminal, and can also communicate with the intelligent collaborative platform to receive the command and dispatch of the intelligent system platform. The intelligent system platform can also obtain the on-site conditions of each relevant personnel through the intelligent collaborative terminal. The intelligent collaborative terminal is also equipped with a satellite positioning device, which can obtain location information in real time and send the location information to the intelligent collaborative platform, so that the intelligent collaborative platform can obtain the location information of relevant personnel in a timely manner and provide data support for subsequent dispatch and assignment of relevant personnel. For example, if a dangerous situation occurs in a certain place A, the intelligent collaborative platform can view the relevant personnel closest to this place A, and send these relevant personnel to place A to check the situation. The on-site situation can also be viewed in real time through the intelligent collaborative terminal.

[0027] The intelligent collaborative platform remotely controls collaborative terminal devices and the police cloud intelligent terminal, and also obtains various relevant information of the collaborative terminal devices and the police cloud intelligent terminal. The police cloud alarm platform saves the received relevant information. The intelligent collaborative platform can also establish emergency response groups and realize real-time information communication and information sharing through the intelligent collaborative terminal.

[0028] Specifically, the intelligent collaborative platform is equivalent to the overall data center and command center. It can establish connections with the police cloud IoT platform and the intelligent collaborative terminals, receive various relevant information sent by them, including real-time monitoring data and location information, etc., and save the relevant information in the database, which is convenient for viewing at any time when needed in the future. If necessary, it can also remotely control each intelligent collaborative terminal and view the real-time monitoring data captured by the intelligent collaborative terminal in real time. It can also establish an emergency response group through the intelligent collaborative platform, and information communication and information sharing can be achieved between each intelligent collaborative terminal in the group.

[0029] The above method realizes multi-point perception and collaborative work based on wireless communication technology, improves the flexibility and scalability of the security system, manages the intelligent collaborative terminal through the intelligent collaborative platform, facilitates real-time monitoring and scheduling by managers, and can also quickly establish emergency response groups, thereby improving the response speed and processing capabilities in emergency situations.

[0030] Furthermore, the collaborative terminal device is configured as follows: the collaborative terminal device divides the monitoring data into multiple sub-data, and numbers the multiple sub-data in sequence, and packages the sub-data and the corresponding numbers to generate multiple sub-data packets. When each collaborative terminal device sends a sub-data packet to the Police Cloud IoT platform, it pre-judges whether itself and the corresponding Police Cloud IoT platform can directly establish a wireless communication connection. If not, the collaborative terminal device sends the sub-data packet to the relay node closest to the collaborative terminal device, and sends multiple sub-data packets to the relay node. After receiving the sub-data packet, the relay node forwards the sub-data packet to the Police Cloud IoT platform. If possible, the collaborative terminal device sends the monitoring data directly to the Police Cloud IoT platform.

[0031] Specifically, the wireless communication connection established can be a wireless communication technology such as Zigbee or NB-loT, which are characterized by low power consumption, anti-interference, easy deployment and long-distance communication. The communication distance can usually reach several kilometers. The specific communication distance depends on environmental factors. In an environment with dense obstructions, the communication distance will be relatively short. Therefore, a wireless communication connection is established between the collaborative terminal device and the Police Cloud IoT platform. In order to quickly send the monitoring data of the collaborative terminal device to the Police Cloud IoT platform, due to the large amount of monitoring data, in order to improve the transmission efficiency, the collaborative terminal device divides the monitoring data into multiple sub-data, and also numbers the sub-data in sequence, and packages the sub-data and the number to generate a sub-data packet. When the collaborative terminal device sends its own sub-data packet to the Police Cloud IoT platform, it pre-judges whether it and the corresponding Police Cloud IoT platform are Whether a wireless communication connection can be established directly, if not, it means that the collaborative terminal device is far away from the police cloud IoT platform and has exceeded the communication range of the wireless communication connection. At this time, the collaborative terminal device sends the sub-data packet to the relay node closest to the collaborative terminal device, and sends multiple sub-data packets to the relay node. After the relay node receives the sub-data packet, it forwards the sub-data packet to the police cloud IoT platform. If it can, it means that the collaborative terminal device is close to the police cloud IoT platform and can directly send the sub-data packet to the police cloud IoT platform within the communication range of the wireless communication connection. The above method divides the monitoring data into multiple sub-data packets and transmits them to the police cloud IoT platform in parallel, thereby improving the efficiency of data transmission. When a direct wireless communication connection cannot be established with the police cloud IoT platform, the sub-data packet is forwarded through the relay node, thereby extending the communication distance of the wireless communication connection.

[0032] Furthermore, the relay node is configured to: cooperate with the terminal device to simultaneously send multiple sub-data packets to the relay node in a concurrent manner; after receiving the sub-data packets, the relay node sends the multiple sub-data packets to the police cloud IoT platform in sequence through the selected first communication line in the order of the received sub-data packets; in the process of forwarding the sub-data packets, the relay node also periodically determines whether the first communication line is still the optimal communication line; if so, continue to use the first communication line to forward the sub-data packets; if not, select a new optimal communication line as the new first communication line, and forward the sub-data packets through the new first communication line.

[0033] Specifically, in order to improve the efficiency of sub-packet transmission, the collaborative terminal device sends multiple sub-packets to the relay node in a concurrent manner. After the relay node receives the sub-packets, since the communication with the collaborative terminal device uses a concurrent method, and the relay node may communicate with multiple system terminal devices at the same time, if the relay node transmits the sub-packets to the Police Cloud IoT platform through multiple communication lines, it will increase the communication pressure of the relay node. Therefore, the sub-packets are sent to the Police Cloud IoT platform through the first communication line in the order of receiving the sub-packets. The first communication line is the optimal communication line selected by the relay node. The specific selection method will be explained in detail later. If the first communication line is used for a long time Transmitting sub-packets may slow down the transmission rate of the first communication line. In order to ensure that the relay node always uses the optimal communication line when forwarding sub-packets, the relay node periodically determines whether the first communication line is still the optimal communication line during the process of forwarding sub-packets. If so, the first communication line continues to be used to forward the sub-packets. If not, a new optimal communication line is selected as the new first communication line, and the sub-packets are forwarded through the new first communication line. The above method first sends the sub-packets to the relay node in a concurrent manner, and the relay node then sends the sub-packets to the Jingyun IoT platform through the optimal communication line in the order of receipt, thereby further improving the efficiency of sub-packet transmission.

[0034] Furthermore, the relay node is configured to select the first communication line in the following manner: before the relay node sends a sub-data packet to the police cloud IoT platform, the relay node sets a first value and a second value, the relay node generates first data, and sends the first data N times to the police cloud IoT platform through multiple communication lines, and the number of repeated transmissions N is the first value. After receiving the first data, the police cloud IoT platform obtains all first data received from the same communication line. If all the first data are the same, the communication line is retained as an alternative communication line, and then all the alternative communication lines are obtained, and the alternative communication line with the shortest communication time is selected as the first communication line.

[0035] Specifically, in order to select the optimal communication line from multiple communication lines, the relay node generates first data before sending a sub-data packet to the Jingyun IoT platform. The first data can be set to data with a particularly small amount of data, such as 1001. The first data is repeatedly sent N times to the Jingyun IoT platform through multiple communication lines. N is a first value. The first value can be set according to the current network status. If the network status is good, it can be set to a larger value. If the network status is not good, it can be set to a smaller value. After receiving the first data, the Jingyun IoT platform determines whether all the first data received from the same communication line are the same. If they are the same, it means that there is no error in the process of transmitting the first data multiple times through this communication line, which means that this communication line is relatively stable. This communication line is used as an alternative communication line, and all alternative communication lines are obtained. The one with the shortest communication time is selected as the first communication line. The shortest communication time means high transmission efficiency. The one with the highest transmission efficiency is selected as the optimal communication line, which is the first communication line.

[0036] Further, the relay node is configured as follows: in the absence of an alternative communication line, the relay node repeatedly sends the first data M times to the Jingyun IoT platform through multiple communication lines, and the number of repeated transmissions M is the second value minus the first value. After receiving the first data, the Jingyun IoT platform counts the number of errors of each communication line, obtains the first alternative communication line with the least number of errors and the second alternative communication line with the second least number of errors, and also obtains the first communication time of the first alternative communication line and the second communication time of the second alternative communication line. If the first communication time is less than the second communication time, the first alternative communication line is used as the first communication line. If the first communication time is greater than or equal to the second communication time, the time difference between the first communication time and the second communication time is determined. If the time difference is greater than a preset first threshold, the second alternative communication line is used as the first communication line, otherwise the first alternative communication line is used as the first communication line.

[0037] Specifically, in the absence of alternative communication lines, that is, all communication lines have errors when repeatedly transmitting the first data N times, in order to find a relatively stable communication line, the relay node again repeatedly sends the first data M times to the Jingyun IoT platform through multiple communication lines, and the number of repeated transmissions M is the second value minus the first value. After receiving the first data, the Jingyun IoT platform counts the number of errors of each communication line, and obtains the first alternative communication line with the least number of errors and the second alternative communication line with the second least number of errors. The second alternative communication line with the second least number of errors refers to the communication line with the least number of errors among all the remaining communication lines except the first alternative communication line. After obtaining the two communication lines with the least number of errors, the optimal communication line is selected according to the communication time between the two. If it is direct Selecting the communication line with the least number of errors as the optimal communication line may result in selecting a communication line with a long communication time. Therefore, in order to ensure that the relatively optimal communication line is selected, the optimal communication line is selected according to the communication time. If the first communication time is less than the second communication time, it means that the first alternative communication line has the least number of errors and the communication time is relatively short. Therefore, the first alternative communication line is used as the first communication line. Otherwise, continue to judge the time difference between the two communication times. If the time difference is less than or equal to the preset first threshold, it means that the time difference is small and can be ignored. The relatively stable first alternative communication line is still used as the first communication line. If the time difference is greater than the first threshold, it means that the time difference is large. After comprehensive consideration, the second alternative communication line with relatively fewer errors and relatively short communication time is selected as the first communication line.

[0038] Furthermore, the Police Cloud IoT platform is configured as follows: before the Police Cloud IoT platform communicates with the collaborative terminal device, it sends multiple different transmission speeds to the collaborative terminal device, and the collaborative terminal device transmits a predetermined number of sub-data packets at different transmission speeds respectively. After receiving the sub-data packets, the Police Cloud IoT platform detects the sub-data packets transmitted at different transmission speeds, obtains the packet loss rates corresponding to the different transmission speeds, obtains all transmission speeds with packet loss rates less than or equal to a preset second threshold, selects the transmission speed with the largest value as the optimal transmission speed, sends the optimal transmission speed to the collaborative terminal device, and the collaborative terminal device sends the sub-data packets at the optimal transmission speed, and repeats this step every preset first time period to redetermine the optimal transmission speed.

[0039] Specifically, when the Police Cloud IoT platform communicates with multiple collaborative terminal devices and relay devices at the same time, data packet conflicts may occur. In order to optimize network performance and reduce data packet conflicts, the communication process between the Police Cloud IoT platform and the collaborative terminal devices is taken as an example to illustrate. The communication between the collaborative terminal devices and the relay devices can also use the same method to optimize the data transmission speed. Before communicating with the collaborative terminal devices, the Police Cloud IoT platform sends multiple different transmission speeds that it can support to the collaborative terminal devices. For example, the transmission speeds supported by the collaborative terminal devices are 20mbps, 25mbps, 30mbps, 35mbps, 40mbps, 45mbps, and 50mbps. After receiving the transmission speed, the collaborative terminal devices send a predetermined number of sub-data packets to the Police Cloud IoT platform at different transmission speeds. For example, the predetermined number can be 100. After receiving the sub-data packets, the Police Cloud IoT platform sends the different transmission speeds to the collaborative terminal devices. The sub-packets transmitted at different transmission speeds are detected to obtain the packet loss rates corresponding to the different transmission speeds, for example, the packet loss rates obtained are 0, 0, 0.01, 0.02, 0.02, 0.02, 0.03 respectively, and then the transmission speed corresponding to the packet loss rate less than or equal to the preset second threshold is obtained. Assuming that the second threshold is 0.02, except for 50 mbps, the packet loss rates of other transmission speeds are within an acceptable range. Therefore, the largest transmission speed is selected from other transmission speeds as the optimal transmission speed, and the subsequent collaborative terminal device transmits the sub-packets at the optimal transmission speed. In the process of data transmission, the network environment may deteriorate due to the increase in data transmission volume or interference from the external environment. If data is always transmitted at the same transmission speed, the packet loss rate may increase. In order to keep the transmission speed at the optimal transmission speed and to keep the packet loss rate within an acceptable range, a new optimal transmission speed is periodically obtained.

[0040] The above mentioned method optimizes the data transmission speed, thereby improving communication efficiency and reducing data packet loss.

[0041] Furthermore, the Police Cloud IoT platform is configured as follows: after receiving the first sub-packet, the Police Cloud IoT platform obtains the number of the first sub-packet as the minimum number, and after a preset second period of time, obtains the maximum value of the numbers of all received sub-packets as the maximum number, and determines whether all sub-packets between the minimum number and the maximum number have been received. If not, obtain the number of the sub-packet that has not been received as the lost number, and send the lost number to the collaborative terminal device, which resends the sub-packet corresponding to the lost number. After receiving all the sub-packets corresponding to the lost numbers, the maximum number is used as the new minimum number, and the maximum number is updated every second period of time. This step is repeated until the Police Cloud IoT platform has received all the sub-packets.

[0042] Specifically, in order to ensure that the Jingyun IoT platform receives all data packets, after receiving the first sub-packet, the Jingyun IoT platform obtains its number. Generally, in the early stage of communication, the first sub-packet received should be the first sub-packet sent, so the number of the first sub-packet is used as the minimum number. After a preset second period of time, such as 1 minute, the maximum value of the numbers of all received sub-packets is obtained as the maximum number. The number is used to determine whether the sub-packet is lost during the transmission process. If so, the missing number between the minimum number and the maximum number is obtained as the lost number, and the lost number is sent to the cooperative terminal device, which resends the corresponding sub-packet. After receiving the sub-packet corresponding to the lost number, the previous maximum number is used as the new minimum number to prepare for the next judgment of whether it is lost. After a preset second period of time, the maximum value of the numbers of all received data packets is obtained as the new maximum number, and whether the data packet is lost is determined based on the number. Then, this step is repeated until the Jingyun IoT platform has received all sub-packets. The above method can achieve that even if the sent data is lost during the data transmission process, the lost sub-packet can be resent through coordinated communication between devices to ensure data integrity and transmission reliability.

[0043] Furthermore, the intelligent collaborative terminal is configured to establish a communication connection with the wearable device to obtain human body indicators in real time, automatically trigger an alarm when an abnormal situation is detected, and issue a human-machine separation warning when no human body indicators can be obtained.

[0044] Specifically, the intelligent collaborative terminal equipment can also establish a communication connection with the wearable devices of relevant personnel, obtain human indicators in real time, such as heart rate, etc., and automatically trigger the alarm when an abnormal situation is detected to ensure people's life, health and safety. It can also determine whether human-machine separation has occurred through the communication connection with the wearable device. In special circumstances, such as when real-time safety protection of people is required, human-machine separation can be discovered in time and an early warning can be issued in time.

[0045] In this specification, the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the embodiments described later, the description is relatively simple, and the relevant parts can be referred to the partial description of the previous embodiments.

[0046] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An intelligent collaborative security system, characterized in that: The system comprises: The collaborative terminal equipment includes fixed cameras, mobile monitoring equipment, and sensors. Based on the regional characteristics of each target area, the collaborative terminal equipment is deployed in each target area, and the collaborative terminal equipment is used to monitor the target area in real time to obtain monitoring data. A police cloud IoT platform is set for the target area, and the optimal transmission speed with the police cloud IoT platform is obtained. The monitoring data is sent to the police cloud IoT platform based on the optimal transmission speed; The police cloud IoT platform obtains the best transmission speed with the collaborative terminal device at a preset first time interval, and after establishing a wireless communication connection with the collaborative terminal device, the collaborative terminal device sends the monitoring data to the police cloud IoT platform based on the best transmission speed through the wireless communication connection. The police cloud IoT platform analyzes the monitoring data, and when an abnormal situation is monitored, notifies the alarm device and the alarm device sends an alarm signal, and also sends the monitoring data to the intelligent collaborative platform in real time; The intelligent collaborative terminal establishes a communication connection with other intelligent collaborative terminals and the intelligent collaborative platform to communicate with each other. The intelligent collaborative terminal is provided with a satellite positioning device, which can obtain the location information of the intelligent collaborative terminal at any time. The intelligent collaborative terminal also sends the location information to the intelligent collaborative platform in real time; The intelligent collaborative platform remotely controls the collaborative terminal device and the police cloud intelligent terminal, and also obtains various relevant information of the collaborative terminal device and the police cloud intelligent terminal. The police cloud alarm platform saves the received relevant information. The intelligent collaborative platform can also establish an emergency response group to achieve real-time information communication and information sharing through the intelligent collaborative terminal.

2. The system according to claim 1, characterized in that The collaborative terminal device is configured as follows: the collaborative terminal device divides the monitoring data into multiple sub-data, and numbers the multiple sub-data in sequence, and packages the sub-data and the corresponding numbers to generate multiple sub-data packets. When each collaborative terminal device sends the sub-data packet to the Police Cloud IoT platform, it pre-judges whether itself and the corresponding Police Cloud IoT platform can directly establish a wireless communication connection. If not, the collaborative terminal device sends the sub-data packet to the relay node closest to the collaborative terminal device, and sends multiple sub-data packets to the relay node. After receiving the sub-data packet, the relay node forwards the sub-data packet to the Police Cloud IoT platform. If possible, the collaborative terminal device sends the monitoring data directly to the Police Cloud IoT platform.

3. The system according to claim 2, characterized in that The relay node is configured as follows: the collaborative terminal device sends multiple sub-data packets to the relay node simultaneously in a concurrent manner; after receiving the sub-data packets, the relay node sends the multiple sub-data packets to the police cloud IoT platform in sequence through the selected first communication line in the order of the received sub-data packets; in the process of forwarding the sub-data packets, the relay node also periodically determines whether the first communication line is still the optimal communication line; if so, the first communication line continues to be used to forward the sub-data packets; if not, a new optimal communication line is selected as the new first communication line, and the sub-data packets are forwarded through the new first communication line.

4. The system according to claim 3, characterized in that The relay node is configured to select the first communication line in the following manner: before the relay node sends the sub-data packet to the police cloud IoT platform, the relay node sets a first value and a second value, the relay node generates first data, and sends the first data N times to the police cloud IoT platform via multiple communication lines, and the number of repeated transmissions N is the first value. After receiving the first data, the police cloud IoT platform obtains all the first data received from the same communication line. If all the first data are the same, the communication line is retained as an alternative communication line, and then all the alternative communication lines are obtained, and the alternative communication line with the shortest communication time is selected as the first communication line.

5. The system according to claim 4, characterized in that The relay node is configured as follows: in the absence of the alternative communication line, the relay node repeatedly sends the first data M times to the police cloud IoT platform through multiple communication lines again, and the number of repeated transmissions M is the second value minus the first value. After receiving the first data, the police cloud IoT platform counts the number of errors of each communication line, obtains the first alternative communication line with the least number of errors and the second alternative communication line with the second least number of errors, and also obtains the first communication time of the first alternative communication line and the second communication time of the second alternative communication line. If the first communication time is less than the second communication time, the first alternative communication line is used as the first communication line. If the first communication time is greater than or equal to the second communication time, the time difference between the first communication time and the second communication time is determined. If the time difference is greater than a preset first threshold, the second alternative communication line is used as the first communication line, otherwise the first alternative communication line is used as the first communication line.

6. The system according to claim 1, characterized in that The configuration of the police cloud IoT platform is: Before the Jingyun IoT platform communicates with the collaborative terminal device, the Jingyun IoT platform sends multiple different transmission speeds to the collaborative terminal device. The collaborative terminal device transmits a predetermined number of sub-data packets at different transmission speeds. After receiving the sub-data packets, the Jingyun IoT platform detects the sub-data packets transmitted at different transmission speeds, obtains the packet loss rates corresponding to the different transmission speeds, obtains all the transmission speeds with a packet loss rate less than or equal to a preset second threshold, selects the transmission speed with the largest value as the optimal transmission speed, and sends the optimal transmission speed to the collaborative terminal device. The collaborative terminal device sends the sub-data packets at the optimal transmission speed, and repeats this step every preset first time period to redetermine the optimal transmission speed.

7. The system according to claim 1, characterized in that The configuration of the Police Cloud IoT platform is as follows: after receiving the first sub-packet, the Police Cloud IoT platform obtains the number of the first sub-packet as the minimum number, and after a preset second period of time, obtains the maximum value of the numbers of all the received sub-packets as the maximum number, and determines whether all the sub-packets between the minimum number and the maximum number have been received; if not, obtains the number of the sub-packet that has not been received as the lost number, and sends the lost number to the cooperative terminal device, which resends the sub-packet corresponding to the lost number; after receiving all the sub-packets corresponding to the lost numbers, uses the maximum number as the new minimum number, updates the maximum number every time the second period of time has passed, and repeats this step until the Police Cloud IoT platform has received all the sub-packets.

8. The system according to claim 1, characterized in that The intelligent collaborative terminal is configured to establish a communication connection with the wearable device to obtain human body indicators in real time, automatically trigger an alarm when an abnormal situation is detected, and issue a human-machine separation warning when no human body indicators can be obtained.

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