A device safety control system for detecting human presence based on radar

Abstract

The present invention discloses a device safety control system based on radar detection of human presence, comprising: a human body detection radar, a linkage controller, a controlled device, and a control terminal; the control terminal is wirelessly connected to the linkage controller and is used to manage ports and set parameters for the linkage controller; the input end of the linkage controller is connected to the human body detection radar, and the output end is connected to the control device, and is used to receive identification signals from the human body detection radar and control the controlled device according to the set ports. By providing a linkage controller between the human body detection radar and the controlled device, and setting and managing its parameters and ports through the control terminal, the present invention can achieve flexible adjustment of the human body detection radar and the controlled device without being restricted by hardware installation and construction, significantly reducing the complexity of subsequent adjustments.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment intelligent control, and more particularly to an equipment safety control system based on radar detection of human presence. Background Art

[0002] At present, most equipment switches used in production, testing workshops and other similar scenarios use infrared switches and voice-controlled switches.

[0003] Infrared switches use infrared sensors to sense human movement using temperature and the Doppler effect, enabling indoor liveness detection and automatic switch control. However, the sensitivity is poor, requiring significant human movement to be detected. Furthermore, this method is significantly affected by ambient temperature; any moving object in the environment with a temperature close to that of the human body will be detected.

[0004] The sound-activated switch realizes switch control by collecting sound waves exceeding the set threshold in the environment, but this method is easily interfered by environmental noise.

[0005] In addition, the above switches are extremely difficult to adjust later after the initial installation is completed.

[0006] Therefore, in view of the above-mentioned defects, how to provide a device safety control method or system that can improve control accuracy or achieve flexible control is an urgent problem that needs to be solved by those skilled in the art. Summary of the Invention

[0007] In view of this, the present invention provides an equipment safety control system based on radar detection of human presence to at least partially solve the above problems.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A device safety control system based on radar detection of human presence, comprising: a human detection radar, a linkage controller, a controlled device and a control terminal;

[0010] The control terminal is wirelessly connected to the linkage controller and is used to perform port management and parameter setting on the linkage controller.

[0011] The input end of the linkage controller is connected to the human body detection radar, and the output end is connected to the controlled device, for receiving the identification signal of the human body detection radar and controlling the operation of the controlled device according to the set port.

[0012] Preferably, a human body recognition algorithm is built into the internal chip of the human body detection radar, which is used to realize human body recognition from the perspectives of movement level, breathing level and heartbeat level.

[0013] Preferably, there are multiple human body detection radars, which are respectively arranged in a set space.

[0014] Preferably, the linkage controller further includes a virtual port to facilitate free matching of the input port and the output port of the linkage controller.

[0015] Preferably, the port management includes: virtual port management, input port and output port binding, and virtual port and physical port binding;

[0016] The parameter settings include: the activation time of the human body detection radar, the pre-start time of the controlled device, whether to enable the human body detection radar detection control, and the working mode setting of the controlled device when the human body detection radar fails.

[0017] Preferably, the virtual port management includes setting a virtual port execution strategy.

[0018] Among them, the execution strategies of the virtual detection port include all existence and single existence;

[0019] The execution strategies of the virtual control port include output normally open and output normally closed.

[0020] Preferably, the linkage controller is further wirelessly connected to a cloud server, and the cloud server is used to receive data generated by the linkage controller, perform classification, real-time analysis and storage.

[0021] Preferably, the control terminal is wirelessly connected to the cloud server for viewing the status data stored in the cloud server, including the working status of the human body detection radar, the detection results of the human body detection radar, the online status of the human body detection radar, and the control instruction records.

[0022] Preferably, the analysis results of the cloud server are queried through data reporting software.

[0023] As can be seen from the above technical solutions, the present invention discloses a device safety control system based on radar detection of human presence. Compared with the existing technology, the present invention provides a linkage controller between the human detection radar and the controlled device, and manages its parameters and ports through a control terminal. This allows for flexible adjustment of the human detection radar and the controlled device without being restricted by hardware installation and construction, greatly reducing the complexity of subsequent adjustments.

[0024] Another effective effect of the present invention is that the use of highly sensitive human body detection radar can effectively overcome the shortcomings of infrared switches and voice-activated switches. At the same time, connecting multiple radars in series to form a radar group and cooperating with the intelligent control system of the present invention can effectively expand the detection range and greatly improve the applicability of the radar's use environment.

[0025] Another beneficial effect of the present invention is that the system operation data is stored through the cloud server, a real database based on actual conditions is established, various data are analyzed, and data application software that can be viewed in real time is developed, which facilitates and intuitively grasps the operation status of on-site workers and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the serial structure of the human body radar group of the present invention;

[0028] Figure 2 This is a schematic diagram of the editing page of the virtual detection port of the present invention;

[0029] Figure 3 It is a schematic diagram of the execution strategy of the present invention that exists in its entirety;

[0030] Figure 4 A schematic diagram of the execution strategy of the present invention whereby a single existence exists;

[0031] Figure 5 This is a schematic diagram of the editing page of the virtual control port of the present invention;

[0032] Figure 6 This is a schematic diagram of the port binding page of the present invention;

[0033] Figure 7 This is a functional diagram of the control terminal of the present invention;

[0034] Figure 8 This is a schematic diagram of the mobile phone software management interface of the present invention;

[0035] Figure 9 Schematic diagram of the working process of the linkage controller of the present invention;

[0036] Figure 10 This is an architectural diagram of the device safety control system based on radar detection of human presence in the present invention;

[0037] Figure 11 This is a flowchart of the safety control system of the device based on radar detection of human presence in the present invention;

[0038] Figure 12 This is a functional block diagram of the data analysis software of the present invention;

[0039] Figure 13This is a schematic diagram of the radar detection log of the present invention;

[0040] Figure 14 This is a monthly statistical diagram of the detection results of the radar group of the present invention. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] To address the problem of inflexible adjustment after the initial installation of a human detection radar, an embodiment of the present invention discloses an equipment safety control system based on radar detection of human presence, which is used to achieve automated control of production equipment by determining the presence of a human body. The system mainly comprises a human detection radar, a linkage controller, a controlled device, and a control terminal.

[0043] The control terminal is wirelessly connected to the linkage controller and is used to manage ports and set parameters for the linkage controller.

[0044] The input end of the linkage controller is connected to the human body detection radar, and the output end is connected to the controlled device. It is used to receive the identification signal of the human body detection radar and control the controlled device according to the set port.

[0045] In this embodiment, there are multiple human detection radars, which are respectively arranged in a set space. That is, according to needs, one human detection radar can be arranged in one space, or multiple human detection radars can be arranged in one space. In this case, the multiple human detection radars should be connected in series and electrically connected to the linkage controller;

[0046] In view of the drawbacks of existing infrared and voice-activated control technologies, the present invention utilizes radar for human presence detection. This indoor human presence detection radar utilizes the Doppler principle to detect moving targets indoors, offering high recognition sensitivity. Furthermore, a human recognition algorithm is embedded within the radar chip, enabling human activity recognition at the motion, breathing, and heartbeat levels within the intended application scenario.

[0047] Specifically, by analyzing and calculating a large number of data samples, the chip's built-in software algorithm parameters are adjusted to avoid false triggering interference from curtains, vegetation, and fans. The use of a frequency-modulated continuous wave (FMCW) scheme also provides the radar with more accurate distance information, something that infrared and voice-activated detection cannot achieve.

[0048] Furthermore, the present invention discloses an equipment safety control system based on radar detection of human presence, achieving better monitoring and control effects.

[0049] In this invention, a multi-radar device serial deployment method based on actual application scenarios is designed and defined, and multiple radar devices are connected in series into a detection group to achieve multi-area joint detection.

[0050] In one embodiment, a human detection radar is fixedly installed indoors with an adjustable angle. A control terminal controls it as needed via a linkage controller, ensuring the radar's detection range and angle are within a controllable range. For example, the radar can be configured to monitor a key indoor activity area or the entire space. In this case, the control strategy can be further configured to: power off the controlled device if a person leaves the room within 0.2 meters of the door, or power off the controlled device after the person remains in the room for 30-60 seconds.

[0051] Further Figure 1 As shown, in order to facilitate control, the present application introduces a linkage controller between the human body detection radar and the controlled device. One of the reasons is that the indoor detection radar operates in a low-voltage DC mode and has very high requirements on the stability of voltage and current. The controlled device is usually in a high-voltage AC mode and will generate strong voltage and current disturbances when it is turned on and off. The use of a separate linkage controller can isolate the radar circuit and the controlled device, thereby effectively ensuring that the radar obtains stable voltage and current.

[0052] In addition, the linkage controller of the present invention adopts a single-chip microcomputer as the central processing unit and is configured with multiple input ports and multiple output ports to facilitate flexible control of the human body detection radar and the controlled equipment. Specifically, each input port can be connected to a human body detection radar or a human body detection radar group. Similarly, each output port can control one device individually or multiple devices at the same time.

[0053] Furthermore, the linkage controller further includes a virtual port, so as to realize free matching of the input port and the output port of the linkage controller.

[0054] The matching process is achieved through the port management of the control terminal. Specifically, the port management includes: virtual port management, input port and output port binding, and virtual port and physical port binding;

[0055] For virtual port management, it includes: ① establishing a virtual detection port with multiple input ports; ② establishing a virtual control port with multiple output ports; ③ setting the execution strategy of the virtual port; wherein, the virtual port includes a virtual detection port and a virtual control port. In this application, the serial radar group outputs the detection results in groups, and provides two corresponding detection mechanisms; such as Figure 2, the execution policy of the virtual detection port can be set to all existence or single existence;

[0056] Specifically, the strategy of all existence is as follows Figure 3 As shown, if all radar groups in the virtual detection group detect the presence of a human body, the virtual detection port outputs the presence of a human body; if only one radar group in the virtual group detects the absence of a human body, the virtual detection port outputs the absence of a human body;

[0057] The strategy of single existence is existence Figure 4 As shown, the single existence mechanism means that as long as one radar group in the virtual detection group detects the presence of a human body, the virtual detection port outputs the presence of a human body; if all radar groups detect that there is no human body, the virtual detection port outputs the presence of no human body.

[0058] Further, if Figure 5 , the execution strategy of the virtual control port is set to output normally open and output normally closed.

[0059] In addition, input port and output port binding includes: ① multiple input ports binding to a single output port; ② a single input port binding to multiple output ports;

[0060] Binding virtual ports to physical ports includes: ① Binding multiple virtual detection ports to a single physical output port; ② Binding a single virtual detection port to multiple physical output ports; ③ Binding a single virtual detection port to a single virtual output port; The port binding page is as follows: Figure 6 As shown;

[0061] The control terminal of the present invention is also used to set parameters for the linkage controller, where the parameters include: the activation time of the human body detection radar, the pre-start time of the controlled device, whether to enable the human body detection radar detection control, and the working mode setting of the controlled device when the human body detection radar fails.

[0062] It is also used to record human body detection radar related data in real time, including: the working status of the human body detection radar, the detection results of the human body detection radar, the online status of the human body detection radar, and control instruction records.

[0063] In one embodiment, when the human body detection radar is a radar detection group, the function display page of the control terminal is as follows: Figure 7 As shown, that is:

[0064] Management functions include: virtual port management, input port and output port binding, virtual port and physical port binding;

[0065] Data records include: radar group working status, radar group detection results, radar group online status, and control instruction records;

[0066] Parameter settings include: radar group activation time, controlled device pre-startup time, whether to enable radar group detection control, and radar group failure controlled device working mode settings.

[0067] Preferably, the above functions of the control terminal of the present invention can be set to a management software mode and implanted into the control terminal, and the control terminal in this application is a mobile phone, computer, IPAD or any device that can display.

[0068] In one embodiment, if the control terminal is a mobile phone, its function page is as follows: Figure 8 shown.

[0069] Furthermore, after the ports and parameters of the linkage controller are set through the control terminal, the linkage controller executes the following process when working, such as Figure 9 As shown:

[0070] (1) The linkage controller reads the radar group detection results;

[0071] (2) Determine whether the radar group has set up a virtual detection port, and thus determine whether the virtual detection port strategy needs to be executed;

[0072] (3) Further determine whether to bind the physical control port. If so, the physical port outputs the control instruction. If not, continue to determine whether to set the virtual control port. If so, the virtual port outputs the control instruction. If not, return to continue monitoring the radar group detection results.

[0073] Furthermore, on this basis, an AC power collector can be added to the control port side to collect real-time voltage, current, and power data of individual production equipment, and perform real-time data analysis in the system to generate equipment abnormality alarms and energy consumption statistical reports;

[0074] It is also possible to formulate a data communication protocol on the controller side and directly interact with the device-side software system through 485, CAN bus, wired network, WIFI network, etc.

[0075] In another embodiment, the linkage controller of the present invention is connected to a cloud server via a wireless method, such as an Internet router, wherein the cloud server is used to receive the data generated by the linkage controller, perform classification, real-time analysis and storage, and the present invention further connects multiple control terminals via the cloud server, such as Figure 10 As shown, it is convenient to realize an intelligent monitoring and control system from perception, control, management and analysis based on the Internet of Things, cloud computing and big data technologies.

[0076] Specifically, the control system constructed by the present invention has the following working process: Figure 11 As shown, including:

[0077] Set the radar working mode and other working parameters through the management terminal;

[0078] Start the radar according to the parameters set in the management terminal;

[0079] The human detection radar scans the set space and sends its status and scanning results to the linkage controller;

[0080] The linkage controller receives the radar scanning results (manned / unmanned) and the radar working status, and outputs control instructions based on the radar scanning results and the set control strategy;

[0081] Production equipment starts or stops operations according to control instructions (or powers on or off through relay control);

[0082] The linkage controller further sends data such as radar scanning results, radar working status, current control strategy, and production equipment start and stop feedback to the cloud server;

[0083] The cloud server classifies, stores and analyzes the received data;

[0084] The control terminal is wirelessly connected to the cloud server, and can query and view status data based on the calculation of the cloud server.

[0085] In one embodiment, data reporting software may also be provided, that is, a web-based data analysis result viewing system may be implemented using Java+Servlet+Jsp, for querying the analysis results of the cloud server in the form of reports.

[0086] The viewing system includes two parts: data statistics and data query. Figure 11 As shown, data statistics include: radar group monthly detection result statistics and control port monthly command statistics; data query includes: radar group detection log and control port command log.

[0087] In one embodiment, the radar group detection log is as follows Figure 12 As shown, the monthly statistics of radar group detection results are as follows Figure 13 shown.

[0088] The equipment safety control system based on radar detection of human presence in the present invention is now put into production and is ready for use. In applications in different environments, the detection range of a single radar is expanded by connecting human detection radars in series, and the setting of different control strategies for multiple detection ports is realized by linking the controller and the control terminal, thereby further expanding the radar group, realizing synchronous control of multiple devices while providing flexible management without being restricted by hardware installation limitations.

[0089] The control system set by the present invention can be widely used in various application scenarios, such as:

[0090] In hotels and guesthouses, this replaces the card-operated power box, completely changing the customer habit of leaving the power on. Without supervision or any other operation, the power can be turned on when guests are present and off when they leave. This extends the service life of air conditioners, exhaust fans, lamps, kettles, etc., saving electricity costs for hotels and guesthouses.

[0091] This product can also completely solve the major safety issues of water, electricity and gas in homestays, apartment buildings and rental houses. It can truly ensure the safety of electricity, water and gas when people are there and cut off when people leave. It is also an indispensable safety device for left-behind elderly people and lonely elderly people at home.

[0092] This product can also be used in large shopping malls, office buildings, and offices of enterprises and institutions. Without any operation, it can achieve electricity and fire safety protection in these places, allowing room air conditioners, exhaust fans, lamps, water heaters, etc. to stop working and extend their service life. It can also save a lot of electricity costs, obtain low-carbon points, and create value for society.

[0093] Furthermore, the present invention can also be widely used in construction sites, production / inspection workshops, and similar scenarios where production equipment and workers are operating simultaneously. The operation of production equipment requires manual control of key nodes, thus requiring the presence of workers on-site. To more accurately control the operation of production equipment, the system of the present invention can achieve the goal of automatically stopping unmanned production equipment while manned equipment is operating, thereby avoiding accidents and losses.

[0094] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0095] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device safety control system based on radar detection of human presence, characterized in that: include: Human detection radar, linkage controller, controlled equipment and control terminal; The control terminal is wirelessly connected to the linkage controller and is used to perform port management and parameter setting on the linkage controller. The linkage controller uses a single chip microcomputer as the central processing unit and is equipped with multiple input ports, multiple output ports, and virtual ports; Port management includes: virtual port management, input port and output port binding, and virtual port and physical port binding; Virtual port management includes: ① establishing a virtual detection port from multiple input ports; ② establishing a virtual control port from multiple output ports; ③ setting the execution strategy of the virtual port; Binding of input ports to output ports includes: ① Binding multiple input ports to a single output port; ② Binding a single input port to multiple output ports; Binding virtual ports to physical ports includes: ① Binding multiple virtual detection ports to a single physical output port; ② Binding a single virtual detection port to multiple physical output ports; ③ Binding a single virtual detection port to a single virtual output port; Parameter settings include: human detection radar activation time, controlled device pre-start time, whether to enable human detection radar detection control, and controlled device working mode settings when human detection radar fails; The input end of the linkage controller is connected to the human body detection radar, and the output end is connected to the controlled device, for receiving the identification signal of the human body detection radar and controlling the operation of the controlled device according to the set port.

2. The device safety control system based on radar detection of human presence according to claim 1, characterized in that: The human detection radar has a built-in human recognition algorithm in its internal chip, which is used to realize human recognition from the perspectives of movement level, breathing level and heartbeat level.

3. The device safety control system based on radar detection of human presence according to claim 1, characterized in that: There are multiple human body detection radars, which are respectively arranged in a set space.

4. The device safety control system based on radar detection of human presence according to claim 1, characterized in that: The virtual port management includes setting a virtual port execution strategy, Among them, the execution strategies of the virtual detection port include all existence and single existence; The execution strategies of the virtual control port include output normally open and output normally closed.

5. The device safety control system based on radar detection of human presence according to claim 1, characterized in that: The linkage controller is also wirelessly connected to a cloud server, and the cloud server is used to receive data generated by the linkage controller, perform classification, real-time analysis and storage.

6. The device safety control system based on radar detection of human presence according to claim 5, characterized in that: The control terminal is wirelessly connected to the cloud server and is used to view the status data stored in the cloud server, including the working status of the human body detection radar, the detection results of the human body detection radar, the online status of the human body detection radar, and the control instruction records.

7. The device safety control system based on radar detection of human presence according to claim 5, characterized in that: The analysis results of the cloud server are queried through data reporting software.

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