CN218918155U - Bus passenger multivariate information perception system - Google Patents

Abstract

The utility model discloses a bus passenger multi-information sensing system, wherein a power management system is electrically connected to a vehicle-mounted 24V power supply of a bus, and a host, a portrait snapshot module, a radio frequency identification module and a personnel monitoring module are electrically connected to the power management system and are used for receiving power distributed by the power management system; the portrait candid photograph module, the radio frequency identification module and the personnel monitoring module are all in communication connection with the host; the personnel monitoring module is used for detecting whether a human body enters the detection area and acquiring temperature information of the human body, and the portrait snapshot module and the radio frequency identification module are respectively used for snapshot the portrait of the human body and acquiring card information on the human body. The utility model is based on face technology, radio frequency technology and infrared technology, realizes the rapid security check of no contact and no stay of people on buses, is suitable for automatic acquisition of personnel information in large passenger flow and high flux scenes, and solves the problems of information acquisition and checking in special occasions where people are intensive, such as buses, and the like.

Description

Bus passenger multivariate information perception system

Technical Field

The utility model relates to the technical field of bus information checking, in particular to a bus passenger multivariate information perception system.

Background

In recent years, theft and fighting events occur in buses, and huge influences are brought to life and property safety and social stability of masses. The buses adopt open stops, so that the buses stop more, passengers get on and off frequently, comprehensive and powerful security check systems are deployed with great difficulty, and the requirements of sensing and monitoring the identities of passengers getting on are urgent by using modern technological means.

At present, although a video monitoring video is installed in public transportation, the public transportation can only be used for tracing personnel and events after the event, other public security identity information data cannot be effectively associated, and the identity information and the body temperature information of passengers on the bus cannot be checked, so that the public transportation has functional limitations. Moreover, people in buses are dense, the light environment is complex, the network communication environment is unstable, and the method has obvious limitation of checking the personnel information by means of video monitoring only by depending on limited personnel, and cannot achieve full coverage and no loopholes.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a bus passenger multi-information sensing system which can realize comprehensive security check and personnel identity check; the bus security requirement can be met, and the identity verification requirement can be met.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a bus passenger multi-information perception system comprises a power management system, a host, a portrait snapshot module, a radio frequency identification module and a personnel monitoring module; the power management system is electrically connected with a vehicle-mounted 24V power supply of the bus, and the host, the portrait snapshot module, the radio frequency identification module and the personnel monitoring module are all electrically connected with the power management system and are used for receiving the power distributed by the power management system; the portrait candid photograph module, the radio frequency identification module and the personnel monitoring module are all in communication connection with the host; the personnel monitoring module is used for detecting whether a human body enters the detection area and acquiring temperature information of the human body, and the portrait snapshot module and the radio frequency identification module are respectively used for snapshot of the portrait of the human body and acquisition of card information on the human body.

Further, the power management system comprises a voltage stabilizing circuit, a voltage reducing circuit and a UPS circuit, wherein the voltage stabilizing circuit is directly and electrically connected with the radio frequency identification module and provides a 24V direct current power supply for the radio frequency identification module, and the voltage stabilizing circuit is also electrically connected with the voltage reducing circuit; the step-down circuit is respectively and electrically connected with the portrait candid photograph module, the personnel monitoring module and the UPS circuit and is used for respectively providing a 12V direct current power supply for the portrait candid photograph module, the personnel monitoring module and the UPS circuit; the UPS circuit is electrically connected with the host, and one path of 12V direct current power supply output by the voltage reduction circuit is supplied to the host through the UPS circuit.

Further, the portrait snapshot module consists of a level conversion circuit I, a portrait snapshot control circuit and a camera, wherein the voltage reduction circuit is electrically connected with the level conversion circuit I and the camera respectively, the level conversion circuit I is electrically connected with the portrait snapshot control circuit, and the camera is in communication connection with the portrait snapshot control circuit; the portrait snapshot control circuit is connected with the host computer through a network port in a communication way.

Further, the radio frequency identification module consists of a radio frequency transceiver circuit, a signal amplifying circuit, an antenna matching circuit and an antenna; the radio frequency receiving and transmitting circuit, the signal amplifying circuit, the antenna matching circuit and the antenna are connected in sequence; the radio frequency transceiver circuit is in communication connection with the host through a serial port.

Furthermore, the personnel monitoring module consists of a second level conversion circuit, a personnel monitoring control circuit, an infrared triggering sensor and an infrared temperature sensor, wherein the voltage reduction circuit is electrically connected with the second level conversion circuit, the infrared triggering sensor and the infrared temperature sensor respectively, and the second level conversion circuit is electrically connected with the personnel monitoring control circuit; the infrared trigger sensor and the infrared temperature sensor are respectively in communication connection with the personnel monitoring control circuit; the personnel monitoring control circuit is in communication connection with the host through a serial port.

The utility model has the beneficial effects that: the utility model is based on face technology, radio frequency technology and infrared technology, realizes the rapid security check of no contact and no stay of people on buses, is suitable for automatic acquisition of personnel information in large passenger flow and high flux scenes, and solves the problems of information acquisition and checking in special occasions where people are intensive, such as buses, and the like.

Drawings

FIG. 1 is a schematic diagram of the overall principle of a system according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a power management system according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a portrait snapshot module according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of an RFID module according to an embodiment of the present utility model;

fig. 5 is a schematic diagram of a personnel monitoring module according to an embodiment of the utility model.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings, and it should be noted that, while the present embodiment provides a detailed implementation and a specific operation process on the premise of the present technical solution, the protection scope of the present utility model is not limited to the present embodiment.

The embodiment provides a bus passenger multi-information sensing system, which applies a radio frequency identification technology, a face recognition technology and an infrared temperature measurement technology.

The radio frequency identification technology is a technology for acquiring and identifying relevant data of the evidence card through a radio frequency signal. The antenna is an indispensable important component in the radio frequency identification technology, and radio frequency energy of the reader-writer is radiated in an electromagnetic wave energy mode through the antenna.

The face recognition technology is to firstly perform face positioning detection and feature extraction on an input face image or video stream, and then compare the feature information with a face library so as to confirm the identity information of the recognized face.

The infrared temperature measurement technology is that the infrared sensor measures the temperature of the measured object in a non-contact way by utilizing the physical characteristics of infrared rays, and has the advantages of high sensitivity, quick response and the like.

As shown in fig. 1, the bus passenger multivariate information sensing system of the embodiment comprises a power management system 100, a host 200, a portrait candid camera module 300, a radio frequency identification module 400 and a personnel monitoring module 500; the power management system 100 is electrically connected to a vehicle-mounted 24V power supply of the bus, and the host 200, the portrait snapshot module 300, the radio frequency identification module 400 and the personnel monitoring module 500 are all electrically connected to the power management system 100, and are used for receiving the power distributed by the power management system 100; the portrait candid camera module 300, the radio frequency identification module 400 and the personnel monitoring module 500 are all in communication connection with the host 200; the personnel monitoring module 500 is used for detecting whether a human body enters the detection area and acquiring temperature information of the human body, and the portrait candid camera module 300 and the radio frequency identification module 400 are respectively used for candid photographing of the human body and acquiring card information on the human body.

The system can be preferably arranged at the bus entrance and the bus entrance is used as detection.

The system of the embodiment is powered by a vehicle-mounted 24V power supply of the bus. The bus is frequently started and stopped, the 24V power supply reserved by the vehicle-mounted circuit is easy to parasitic larger ripple noise, and the working mode of the radio frequency identification module 400 is frequently switched, so that electromagnetic disturbance is easy to generate. In order to avoid mutual electromagnetic crosstalk between the multi-element sensing system and the bus electrical system and data loss of the system caused by abnormal power failure, the power management system 100 is added for filtering and voltage stabilization to ensure stable operation of the whole system.

Specifically, as shown in fig. 2, in this embodiment, the power management system 100 includes a voltage stabilizing circuit 101, a voltage reducing circuit 102, and a UPS circuit 103, where the voltage stabilizing circuit 101 is directly electrically connected to the rfid module 400 and provides a 24V dc power supply to the rfid module, and the voltage stabilizing circuit 101 is also electrically connected to the voltage reducing circuit 102; the step-down circuit 102 is electrically connected with the portrait candid module 300, the personnel monitoring module 500 and the UPS circuit 103 respectively, and is used for providing a 12V direct current power supply for the portrait candid module 300, the personnel monitoring module 500 and the UPS circuit 103 respectively; the UPS circuit 103 is electrically connected to the host 200, and a 12V dc power supply output from the step-down circuit 102 is supplied to the host 200 through the UPS circuit 103.

It should be noted that, in the above power management system, the on-vehicle 24V power supply first performs filtering and voltage stabilizing through the voltage stabilizing circuit 101 of the power management system 100 to output two stable 24V dc power supplies, one 24V dc power supply is used by the rfid module 400, the other 24V dc power supply outputs 3 12V dc power supplies through the voltage reducing circuit 102, wherein 2 12V dc power supplies are directly used by the portrait snapshot module 300 and the personnel monitoring module 500, and 1 path is used by the host 200 through the UPS circuit 103. When the external circuit is normal, the UPS circuit 103 will be in a charging mode, and when the external power source is abnormally powered off, the UPS circuit 103 will turn on a discharging mode to supply temporary power to the host 200 and send a power supply abnormal signal to the host 200, so as to remind the host of emergency data storage.

In this embodiment, as shown in fig. 3, the portrait snapshot module 300 is composed of a first level conversion circuit 301, a portrait snapshot control circuit 302 and a camera 303, the step-down circuit 102 is electrically connected to the first level conversion circuit 301 and the camera 303, the first level conversion circuit 301 is electrically connected to the portrait snapshot control circuit 302, and the camera 303 is communicatively connected to the portrait snapshot control circuit 302; the portrait snapshot control circuit 302 is in communication connection with the host 200 through a network port.

In the portrait snapshot module 300, the 12V dc power distributed by the step-down circuit 102 is divided into two paths, one path is directly used by the camera 303, and the other path is converted into 3.3V power by the level conversion circuit 301 for use by the portrait snapshot control circuit 302. The portrait snapshot control circuit 302 controls the camera 303 to snapshot the face photos of the detection area at a fixed frame rate per second, and transmits the face photos to the host 200 through the portal.

As shown in fig. 4, the rfid module 400 is composed of a radio frequency transceiver circuit 401, a signal amplifying circuit 402, an antenna matching circuit 403, and an antenna 404; the radio frequency transceiver circuit 401, the signal amplifying circuit 402, the antenna matching circuit 403 and the antenna 404 are connected in sequence; the radio frequency transceiver circuit 401 is in communication connection with the host 200 through a serial port.

In the above-mentioned rfid module 400, the rf transceiver circuit 401 generates a high-power rf signal with a specific frequency through the signal amplifier circuit 402, and radiates the rf signal into the air through the antenna matching circuit 403 via the set of large-size coil antennas 404 to activate the card chip in the detection area, thereby reading the card information. When the rfid module 400 acquires the card information, the acquired information such as the photo and SN code of the card will be sent to the host 200 through the serial port.

In this embodiment, as shown in fig. 5, the personnel monitoring module 500 is composed of a second level conversion circuit 501, a personnel monitoring control circuit 502, an infrared trigger sensor 503 and an infrared temperature sensor 504, the step-down circuit 102 is electrically connected to the second level conversion circuit 501, the infrared trigger sensor 503 and the infrared temperature sensor 504, and the second level conversion circuit 501 is electrically connected to the personnel monitoring control circuit 502; the infrared triggering sensor 503 and the infrared temperature measuring sensor 504 are respectively connected with the personnel monitoring control circuit 502 in a communication manner; the personnel monitoring control circuit 502 is communicatively connected to the host 200 via a serial port.

In the above personnel monitoring module 500, the 12V dc power input by the step-down circuit 102 is divided into 3 paths, two paths are directly used by the infrared trigger sensor 503 and the infrared temperature sensor 504, and the other path is converted into 3.3V power by the level conversion circuit two 501 for the personnel monitoring control circuit 502. The personnel monitoring control circuit 502 judges whether personnel pass through the detection area or not by monitoring the shielding time of the infrared correlation sensor 503 and excludes the situation that the bus door is opened or closed to touch the infrared correlation sensor by mistake. The person monitoring control circuit 502 obtains the body temperature information of the human body entering the detection area through the infrared temperature sensor 504. The person monitoring control circuit 502 transmits the determination signal and the human body temperature information to the host 200 through the serial port.

The working principle of the embodiment system is as follows: the host 200 initializes the face snapshot control circuit 302 of the face snapshot module 300 and the personnel monitoring control circuit 502 of the personnel monitoring module 500 in the power-on process, and detects the working states of the face snapshot module 300, the radio frequency identification module 400 and the personnel monitoring module 500 and gathers the information uploaded by the face snapshot module 300, the radio frequency identification module 400 and the personnel monitoring module 500. When the host 200 receives the signal that the personnel monitoring module 500 determines that a human body enters the detection area, the network port is opened to receive the portrait photo captured by the portrait capturing module 300, and two serial ports are opened to respectively receive the photo information and the SN code uploaded by the radio frequency identification module 400 and the body temperature information uploaded by the personnel monitoring module 500. Subsequently, the host 200 can store the above information in a structured manner according to the actual needs and settings and perform personnel identification comparison, black-and-white name comparison, abnormal body temperature monitoring and the like, thereby completing the verification and early warning of the identity information of the bus personnel.

Various modifications and variations of the present utility model will be apparent to those skilled in the art in light of the foregoing teachings and are intended to be included within the scope of the following claims.

Claims (5)

1. The bus passenger multi-information perception system is characterized by comprising a power management system (100), a host (200), a portrait snapshot module (300), a radio frequency identification module (400) and a personnel monitoring module (500); the power management system (100) is electrically connected to a vehicle-mounted 24V power supply of the bus, and the host (200), the portrait snapshot module (300), the radio frequency identification module (400) and the personnel monitoring module (500) are electrically connected to the power management system (100) and are used for receiving the power distributed by the power management system (100); the portrait snapshot module (300), the radio frequency identification module (400) and the personnel monitoring module (500) are all in communication connection with the host computer (200); the personnel monitoring module (500) is used for detecting whether a human body enters a detection area and acquiring temperature information of the human body, and the portrait candid camera module (300) and the radio frequency identification module (400) are respectively used for candid photographing the portrait of the human body and acquiring card information on the human body.

2. The bus passenger multivariate information sensing system according to claim 1, wherein the power management system (100) comprises a voltage stabilizing circuit (101), a voltage reducing circuit (102) and a UPS circuit (103), the voltage stabilizing circuit (101) is directly and electrically connected with the radio frequency identification module (400) and provides 24V direct current power for the radio frequency identification module, and the voltage stabilizing circuit (101) is also electrically connected with the voltage reducing circuit (102); the step-down circuit (102) is respectively and electrically connected with the portrait candid module (300), the personnel monitoring module (500) and the UPS circuit (103) and is used for respectively providing a 12V direct current power supply for the portrait candid module (300), the personnel monitoring module (500) and the UPS circuit (103); the UPS circuit (103) is electrically connected with the host (200), and one path of 12V direct current power output by the voltage reduction circuit (102) is supplied to the host (200) through the UPS circuit (103).

3. The bus passenger multi-information sensing system according to claim 2, wherein the portrait snapshot module (300) is composed of a level conversion circuit I (301), a portrait snapshot control circuit (302) and a camera (303), the voltage reduction circuit (102) is electrically connected to the level conversion circuit I (301) and the camera (303) respectively, the level conversion circuit I (301) is electrically connected to the portrait snapshot control circuit (302), and the camera (303) is in communication connection with the portrait snapshot control circuit (302); the portrait snapshot control circuit (302) is in communication connection with the host (200) through a network port.

4. The bus passenger multivariate information sensing system according to claim 1, wherein the radio frequency identification module (400) consists of a radio frequency transceiver circuit (401), a signal amplifying circuit (402), an antenna matching circuit (403) and an antenna (404); the radio frequency receiving and transmitting circuit (401), the signal amplifying circuit (402), the antenna matching circuit (403) and the antenna (404) are sequentially connected; the radio frequency transceiver circuit (401) is in communication connection with the host (200) through a serial port.

5. The bus passenger multi-information sensing system according to claim 2, wherein the personnel monitoring module (500) is composed of a level conversion circuit II (501), a personnel monitoring control circuit (502), an infrared triggering sensor (503) and an infrared temperature measuring sensor (504), the voltage reducing circuit (102) is electrically connected to the level conversion circuit II (501), the infrared triggering sensor (503) and the infrared temperature measuring sensor (504), and the level conversion circuit II (501) is electrically connected to the personnel monitoring control circuit (502); the infrared triggering sensor (503) and the infrared temperature measuring sensor (504) are respectively connected with the personnel monitoring control circuit (502) in a communication way; the personnel monitoring control circuit (502) is in communication connection with the host (200) through a serial port.

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