Dynamic perception system for human track detection

Abstract

The invention discloses a dynamic sensing system for human track detection. The dynamic sensing system comprises a millimeter wave radar, a circuit board, a Wifi module, a battery, an external server, a dynamic sensing terminal and an alarm module, the millimeter-wave radar is used for detecting access personnel position signals; the circuit board converts a position signal detected by the millimeter wave radar into an electrical signal; the Wifi module is used for sending the electrical signal processed by the circuit board; the battery is used for supplying power to the millimeter wave radar, the circuit board and the wifi module; the external server receives the electrical signal sent by the wifi module so as to process the electrical signal to obtain the track of the access personnel; and the dynamic sensing terminal is used for receiving and displaying the personnel track processed by the external server. Through the dynamic sensing system used for human track detection, the abnormal condition of the number of check-in persons in a hotel room can be monitored in real time, and public security law enforcement departments are assisted to carry out related work of hotel check-in safety management.

Description

Technical Field

[0001] The present invention relates to the technical field of personnel monitoring, and in particular to a dynamic sensing system for human trace detection. Background Art

[0002] In the hotel installation management plan, infrared detection is usually used to monitor the entry and exit of people in the hotel rooms. This detection method can only remind and record the entry and exit of people in the room, and cannot monitor the number of people in the room and the change of the number of people in real time. In order to protect the privacy of hotel guests, it is not allowed to install devices with camera functions in private activity spaces such as hotel rooms. In this way, the hotel's occupancy safety management cannot be effectively supervised, and the situation of illegal gatherings cannot be timely informed, which affects the relevant work of the public security law enforcement department. Summary of the invention

[0003] The present invention provides a dynamic perception system for human footprint detection to solve the above-mentioned technical problems, and specifically adopts the following technical solutions:

[0004] A dynamic perception system for human detection, comprising:

[0005] Millimeter wave radar, used to detect the location signals of people entering and leaving;

[0006] A circuit board, electrically mounting a millimeter wave radar to convert a position signal detected by the millimeter wave radar into an electrical signal;

[0007] A Wifi module, electrically connected to the circuit board to transmit the electrical signal processed by the circuit board;

[0008] A battery, electrically connected to the millimeter wave radar, the circuit board and the wifi module to supply power to the millimeter wave radar, the circuit board and the wifi module;

[0009] An external server is communicatively connected to the wifi module to receive the electrical signal sent by the wifi module so as to process the electrical signal to obtain the track of the person entering and leaving the server;

[0010] A dynamic sensing terminal, which is connected to an external server for receiving and displaying the movement trajectory of a person processed by the external server;

[0011] An alarm module is electrically arranged on the external server to send an alarm to the dynamic sensing terminal when the number of people and the movement trajectory received by the external server are abnormal;

[0012] The voltage detection circuit module is arranged on the circuit board to detect the overvoltage or undervoltage of the charging voltage of the battery to prevent charging with different voltages.

[0013] Furthermore, the detection frequency of the millimeter wave radar is 1 frame per second.

[0014] Furthermore, the dynamic perception system for human detection also includes: a shell; the millimeter wave radar, the circuit board, the wifi module and the battery are all installed in the shell; the shell can be detachably installed at a predetermined installation position.

[0015] Furthermore, the circuit board is also provided with a delay circuit module; the delay circuit module is electrically connected to the battery to control the battery to stop charging when the battery voltage exceeds the overcharge detection voltage and this state lasts for more than the overcharge detection delay time, and to control the battery to stop discharging when the battery voltage drops below the over-discharge detection voltage and this state lasts for more than the over-discharge detection delay time.

[0016] Furthermore, the installation height of the shell from the ground is between 1.6m and 2.6m.

[0017] Furthermore, the battery is a single-cell lithium-ion battery with a constant current / constant voltage linear charging circuit.

[0018] Furthermore, the circuit board is also provided with: an anti-reverse charging circuit module for reverse charging of the battery and a thermal feedback current regulating circuit module having a thermal feedback function for automatically adjusting the charging current according to thermal feedback so as to limit the temperature of electrical components on the circuit board under high-power operation or high-temperature environment; the anti-reverse charging circuit module and the thermal feedback current regulating circuit module are both electrically connected to the battery.

[0019] Furthermore, the dynamic sensing terminal is also provided with an encryption module for keeping the information of the person's movement trajectory confidential; the encryption module performs decryption when the decryption key is collected.

[0020] Furthermore, the external server compares the number of people detected by the millimeter-wave radar with the number of people registered in the room number corresponding to the millimeter-wave radar; when the number of people detected by the millimeter-wave radar is greater than the number of people registered in the room number corresponding to the millimeter-wave radar, and the maintenance time is greater than the first time preset value, the alarm module generates a first-level alarm.

[0021] Furthermore, when the alarm module generates a first-level alarm, the external server analyzes the relative position of the personnel detected by the millimeter-wave radar; when the analysis result of the external server on the relative position of the personnel detected by the millimeter-wave radar is: the relative position of the personnel remains relatively fixed or remains relatively fixed within a certain period of time, and the time for which the relative position remains relatively fixed is greater than a second time preset value, the alarm module generates a second-level alarm.

[0022] The benefit of the present invention lies in that the dynamic sensing system for human detection provided can verify and monitor the number of people staying in hotel rooms, so that timely information reminders can be provided when an abnormal number of people is detected, so that relevant management personnel can conduct supervision and management through the dynamic sensing terminal, which is helpful for public security law enforcement departments to carry out related work on hotel occupancy safety management. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 is a schematic diagram of a dynamic perception system for human detection involved in the present application;

[0025] A dynamic sensing system 10 for human detection, a housing 11, a millimeter wave radar 111, a circuit board 112, a Wifi module 113, a battery 114, a delay circuit module 115, an anti-reverse charging circuit module 116, a thermal feedback current regulation circuit module 117, a voltage detection circuit module 118, an external server 12, a dynamic sensing terminal 13, an alarm module 121, and an encryption module 131. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] like Figure 1 As shown, a dynamic sensing system 10 for human trace detection of the present application includes a housing 11, in which a millimeter wave radar 111, a circuit board 112, a Wifi module 113 and a battery 114 are installed. The housing 11 is installed at a height of 1.6m to 2.6m from the ground to ensure the comprehensiveness of the monitoring of the millimeter wave radar 111. In addition, the dynamic sensing system 10 for human trace detection also includes an external server 12, a dynamic sensing terminal 13 and an alarm module 121. The millimeter wave radar 111 is used to detect the position signal of the people entering and leaving. The circuit board 112 is electrically installed with the millimeter wave radar 111 to convert the position signal detected by the millimeter wave radar 111 into an electrical signal. The Wifi module 113 is electrically connected to the circuit board 112 to send the electrical signal processed by the circuit board 112. The battery 114 is electrically connected to the millimeter wave radar 111, the circuit board 112 and the Wifi module 113 to supply power to the millimeter wave radar 111, the circuit board 112 and the Wifi module 113. The external server 12 is communicatively connected to the Wifi module 113 to receive the electrical signal sent by the Wifi module 113 so as to process the electrical signal to obtain the track of the people entering and leaving. The dynamic sensing terminal 13 is communicatively connected to the external server 12 to receive and display the track of the people obtained by the external server 12. The alarm module 121 is electrically arranged on the external server 12 to alarm the dynamic sensing terminal 13 when the number of people and the track of the people received by the external server 12 are abnormal. The dynamic sensing terminal 13 is a mobile terminal used by the public security management department and the hotel management department.

[0030] In this way, when the person who booked the hotel room checks in and enters the room, the millimeter wave radar 111 monitors the number of people entering the room and the movement trajectory. The circuit board 112 converts the movement trajectory information of the number of people detected by the millimeter wave radar 111 into telecommunications and sends it to the external server 12 through the Wifi module 113. The external server 12 obtains the number of people and the movement trajectory corresponding to the number of people by processing the electrical signal, and sends the number of people and the movement trajectory corresponding to the number of people to the dynamic perception terminal 13 for viewing. When the number of people and the movement trajectory corresponding to the number of people are obviously inconsistent with the number of people registered for check-in, and an abnormal situation occurs, the alarm module 121 issues an alarm prompt. In this way, the dynamic perception system 10 for human trace detection can verify and monitor the number of people staying in the hotel room, so that timely information reminders can be issued when an abnormal number of people is detected, so that relevant management personnel can be monitored and managed through the dynamic perception terminal 13, which is helpful for the public security law enforcement department to carry out relevant work on hotel check-in safety management.

[0031] Furthermore, the circuit board 112 is also provided with a delay circuit module 115. During the charging process, the delay circuit module 115: when the voltage of the battery 114 exceeds the overcharge detection voltage (VCU), and this state lasts for more than the overcharge detection delay time (TOC), the protection chip will turn off the second power field effect transistor used for charging control, that is, control the battery 114 to stop charging, and this state is called "overcharge state"; and during the discharge process of the battery 114, when the voltage of the battery 114 drops below the overdischarge detection voltage (VDL), and this state lasts for more than the overdischarge detection delay time (TOD), the protection chip will turn off the first power field effect transistor used for discharge control, stop discharging, that is, control the battery 114 to stop discharging, and this state is called "overdischarge state".

[0032] As a specific implementation, the dynamic sensing terminal 13 is also provided with an encryption module 131. The encryption module 131 performs decryption when a decryption key is collected. This can be used to keep the information of the person's movement trajectory confidential, thereby protecting the relative privacy of the occupants.

[0033] Specifically, when the external server 12 is processing information, it compares the number of people detected by the millimeter-wave radar 111 with the number of people registered in the room number corresponding to the millimeter-wave radar 111: when the number of people detected by the millimeter-wave radar 111 is greater than the number of people registered in the room number corresponding to the millimeter-wave radar 111, and the retention time is greater than the first time preset value, the alarm module 121 generates a first-level alarm. When the alarm module 121 generates a first-level alarm, the external server 12 analyzes the relative position of the people detected by the millimeter-wave radar 111. When the external server 12 analyzes the relative position of the people detected by the millimeter-wave radar 111, the result of the analysis is: the relative position of the people remains relatively fixed or remains relatively fixed within a certain period of time, and the relative position remains relatively fixed for a period of time greater than the second time preset value, the alarm module 121 generates a second-level alarm. In this way, the first-level alarm and the second-level alarm enable the management personnel to clearly understand the situation of the people in the room.

[0034] As a specific implementation, the detection frequency of the millimeter wave radar 111 is 1 frame per second. This can reduce the clarity of the movement trajectory of the person, thereby ensuring the personal privacy of the registered person.

[0035] The circuit board 112 is also provided with a voltage detection circuit module 118. The voltage detection circuit module 118 is used to detect overvoltage or undervoltage of the charging voltage of the battery 114, and control the battery 114 to stop charging when overvoltage or undervoltage is detected, thereby preventing the battery from being charged with different voltages, thereby extending the battery life.

[0036] As a specific implementation, the battery 114 is a single-cell lithium-ion battery with a constant current / constant voltage linear charging circuit. The lithium-ion battery is very suitable for portable device applications, suitable for USB power supply and adapter power supply, and is convenient for installation of the housing 11. The circuit board 112 is also provided with: an anti-reverse charging circuit module 116 and a thermal feedback current regulation circuit module 117, and the anti-reverse charging circuit module 116 and the thermal feedback current regulation circuit module 117 are both electrically connected to the battery 114. The anti-reverse charging circuit module 116 is used for reverse charging of the battery 114, so that no external isolation diode is required, reducing costs. The thermal feedback current regulation circuit module 117 has a thermal feedback function, and can automatically adjust the charging current according to the thermal feedback so as to limit the temperature of the electrical components on the circuit board 112 under high-power operation or high-temperature environment. The charging cut-off voltage of the battery 114 is 4.2V, and the charging current can be controlled by setting a resistor outside the battery 114. When the charging current drops to 1 / 10 of the set value, the charging process will be automatically terminated.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.

Claims

1. A dynamic perception system for human detection, characterized in that: include: Millimeter wave radar, used to detect the location signals of people entering and leaving; A circuit board, electrically mounting the millimeter wave radar to convert a position signal detected by the millimeter wave radar into an electrical signal; A Wifi module, electrically connected to the circuit board to send the electrical signal processed by the circuit board; A battery, electrically connected to the millimeter-wave radar, the circuit board and the wifi module to supply power to the millimeter-wave radar, the circuit board and the wifi module; An external server, which is communicatively connected to the wifi module to receive the electrical signal sent by the wifi module and process the electrical signal to obtain the track of the person entering and leaving; A dynamic sensing terminal, communicatively connected to the external server to receive and display the movement trajectory of the person processed by the external server; An alarm module, electrically arranged in the external server, for sending an alarm reminder to the dynamic sensing terminal when the number of people and the movement track received by the external server are abnormal; The voltage detection circuit module is arranged on the circuit board to detect the overvoltage or undervoltage of the charging voltage of the battery to prevent charging with different voltages.

2. The dynamic perception system for human detection according to claim 1, characterized in that: The detection frequency of the millimeter wave radar is 1 frame per second.

3. The dynamic perception system for human detection according to claim 1, characterized in that: The dynamic sensing system for human trace detection further includes: a housing; The millimeter wave radar, the circuit board, the wifi module and the battery are all installed in the housing; The shell can be detachably installed at a predetermined installation position.

4. The dynamic perception system for human detection according to claim 1, characterized in that: The circuit board is also provided with a delay circuit module; The delay circuit module is electrically connected to the battery to control the battery to stop charging when the voltage of the battery exceeds the overcharge detection voltage and this state lasts for more than the overcharge detection delay time, and to control the battery to stop discharging when the voltage of the battery drops below the overdischarge detection voltage and this state lasts for more than the overdischarge detection delay time.

5. The dynamic perception system for human detection according to claim 3, characterized in that: The installation height of the shell from the ground is between 1.6m and 2.6m.

6. The dynamic perception system for human detection according to claim 1, characterized in that: The battery is a single-cell lithium-ion battery with a constant current / constant voltage linear charging circuit.

7. The dynamic perception system for human detection according to claim 1, characterized in that: The circuit board is also provided with: an anti-reverse charging circuit module for reverse charging of the battery and a thermal feedback current regulating circuit module having a thermal feedback function to automatically regulate the charging current according to thermal feedback so as to limit the temperature of the electrical components on the circuit board during high-power operation or in a high-temperature environment; The anti-reverse charging circuit module and the thermal feedback current regulating circuit module are both electrically connected to the battery.

8. The dynamic perception system for human detection according to claim 1, characterized in that: The dynamic sensing terminal is also provided with an encryption module for keeping the information of the person's movement trajectory confidential; The encryption module performs decryption when the decryption key is collected.

9. The dynamic perception system for human detection according to claim 1, characterized in that: The external server compares the number of people detected by the millimeter-wave radar with the number of people registered in the room number corresponding to the millimeter-wave radar; When the number of people detected by the millimeter-wave radar is greater than the number of people registered in the room number corresponding to the millimeter-wave radar, and the retention time is greater than the first time preset value, the alarm module generates a first-level alarm.

10. The dynamic perception system for human detection according to claim 9, characterized in that: When the alarm module generates a first-level alarm, the external server analyzes the relative position of the person detected by the millimeter-wave radar; The analysis result of the external server on the relative position of the person detected by the millimeter wave radar is: When the relative position of the personnel remains relatively fixed or remains relatively fixed within a certain period of time, and the time for which the relative position remains relatively fixed is greater than a second time preset value, the alarm module generates a secondary alarm.

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