Low-power occupant information automatic detection device and vehicle having the same

Abstract

The application discloses a low-power consumption passenger information automatic detection device and a vehicle with the device. The device comprises an identification card and a card reading device. The card reading device is used for reading passenger personal information in the identification card. The card reading device comprises a low-frequency trigger module, a wireless communication module, a motion sensing module and an MCU. The card reading device does not need to be installed at a door, has low requirements on the installation position, does not need manual card swiping of passengers, and can automatically detect passenger information. The card reading device can collect all passenger information in a very short time, works in a standby mode with very low power consumption most of the time, has very low average power consumption, and has a long battery use period.

Description

Technical Field

[0001] This invention relates to the technical field of occupant information detection devices, and in particular to a low-power automatic occupant information detection device and a vehicle having the device. Background Technology

[0002] In underground coal mines or large factories, workers need to travel to different work areas by vehicle and return by vehicle after completing their work. In order to record the workers' travel routes, analyze the passenger information and transport data of the vehicles, and find the optimal transportation plan, it is necessary to detect passenger information, including the passenger's employee number, job type, and the time and place of boarding and alighting.

[0003] The existing mainstream methods for occupant information detection mainly consist of the following two approaches:

[0004] The first method involves passengers using passive cards to swipe their cards to get on and off the bus. This requires each passenger to manually swipe their card when getting on and off the bus, and depends on the passengers' self-discipline.

[0005] The second method involves installing biometric devices, such as facial recognition, at the car doors to automatically detect passengers. However, these devices generally consume a lot of power, require external power, and have strict requirements on installation location and operating environment. Summary of the Invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0007] To address this, the present invention proposes a low-power automatic occupant information detection device and a vehicle equipped with the device, thereby improving upon the shortcomings of current vehicle occupant information detection technologies, such as high energy consumption, reliance on the vehicle for power supply, the requirement that the card reader must be installed at the door, and stringent requirements on the installation position and even the angle.

[0008] According to an embodiment of the present invention, a low-power occupant information automatic detection device includes an identification card carried by each occupant and storing personal information, and a card reader installed on the vehicle; the card reader is wirelessly connected to the identification card; the card reader is used to read the occupant's personal information in the identification card; the card reader includes a low-frequency trigger module, a wireless communication module, a motion sensing module, and an MCU; the low-frequency trigger module is used to wake up the identification card and cause the identification card to send a wireless signal; the MCU, after receiving the trigger signal from the motion sensing module, transmits a command to the low-frequency trigger module; the wireless communication module is used to receive the high-frequency wireless signal sent by the identification card after it is woken up; the wireless communication module and the MCU transmit information through a communication protocol; the motion sensing module is used to detect whether the vehicle is in motion; the MCU is woken up from a low-power sleep state under the control of the motion sensing module; or, the MCU is interrupted from its working state under the control of the motion sensing module.

[0009] The beneficial effects of this invention are that the card reader does not need to be installed at the car door, has low requirements for installation location, does not require passengers to manually swipe the card, and automatically detects passenger information; the card reader can collect all passenger information in a very short time (within 500ms), and operates in a standby mode with extremely low power consumption (standby current 200uA) most of the time, with extremely low average power consumption and a long battery life.

[0010] According to one embodiment of the present invention, the MCU controls the low-frequency trigger module to transmit a low-frequency trigger signal to wake up the identification card. After the low-frequency trigger signal is transmitted, the low-frequency trigger module is turned off and the MCU controls the wireless communication module to be turned on to wait for the identification card to transmit occupant information.

[0011] According to one embodiment of the present invention, when the motion sensing module detects that the vehicle has switched from a stationary state to a moving state, it will trigger the MCU to be woken up.

[0012] According to one embodiment of the present invention, when the motion sensing module detects that the vehicle has switched from a moving state to a stationary state, it will trigger an interrupt to wake up the MCU.

[0013] According to one embodiment of the present invention, the low-frequency trigger module is connected to the low-frequency trigger antenna.

[0014] According to one embodiment of the present invention, the wireless communication module is connected to the high-frequency antenna.

[0015] According to one embodiment of the present invention, the card reader is powered by a battery.

[0016] According to one embodiment of the present invention, the battery is any one of lithium manganese oxide battery, lithium iron phosphate battery, lithium-manganese dioxide battery and lithium-thionyl chloride battery.

[0017] According to one embodiment of the present invention, the wireless communication module and the MCU use the SPI bus communication protocol, including data such as passenger identity information, vehicle information, boarding time, and alighting time; the identification card and the MCU use a custom over-the-air protocol.

[0018] The present invention also provides a vehicle including the aforementioned low-power occupant information automatic detection device.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained in accordance with the structures particularly pointed out in the description, claims and drawings.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram illustrating the use of the present invention;

[0023] Figure 2 This is a structural block diagram of the present invention;

[0024] Figure 3 This is a flowchart of the process of the present invention.

[0025] The labels in the diagram are: 1. Identification card; 2. Card reader; 3. Low-frequency trigger antenna; 4. High-frequency antenna; 5. Battery; 201. Low-frequency trigger module; 202. Wireless communication module; 203. Motion sensing module; 204. MCU; 205. Low-frequency trigger power supply control circuit. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "one side", "the other side", "both sides", "between", "middle", "upper end", "lower end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] See Figure 1 , Figure 2 and Figure 3 The low-power occupant information automatic detection device of the present invention includes an identification card 1 carried by each occupant and storing personal information, and a card reader 2 installed on the vehicle; the card reader 2 is wirelessly connected to the identification card 1; the card reader 2 is used to read the occupant personal information in the identification card 1.

[0030] The card reader 2 includes a low-frequency trigger module 201, a wireless communication module 202, a motion sensing module 203, and an MCU 204. That is, the internal components of the card reader 2 consist of the low-frequency trigger module 201, the wireless communication module 202, the motion sensing module 203, the MCU 204, and the low-frequency trigger power supply control circuit 205.

[0031] The low-frequency trigger module 201 is used to wake up the identification card 1 and make the identification card 1 send a wireless signal; after receiving the trigger signal from the motion sensing module 203, the MCU 204 sends a transmission command to the low-frequency trigger module 201.

[0032] The wireless communication module 202 is specifically used to receive the high-frequency wireless signal sent by the identification card 1 after it is woken up. The wireless communication module 202 and the MCU 204 transmit information through a communication protocol. The wireless communication module 202 and the MCU 204 use the SPI bus communication protocol, which includes data such as passenger identification information, vehicle information, boarding time, and alighting time. The identification card 1 and the MCU 204 use a custom over-the-air protocol.

[0033] The motion sensing module 203 is used to detect whether the vehicle is in motion; the MCU 204 is woken up or interrupted under the control of the motion sensing module 203. Specifically, the MCU 204 is woken up from a low-power sleep state under the control of the motion sensing module 203; or, the MCU 204 is interrupted while in operation under the control of the motion sensing module 203. When the motion sensing module 203 detects that the vehicle has switched from a stationary state to a moving state, it will trigger the wake-up of the MCU 204. When the motion sensing module 203 detects that the vehicle has switched from a moving state to a stationary state, it will trigger an interrupt to wake up the MCU 204.

[0034] MCU204 controls the low-frequency trigger module 201 to transmit a low-frequency trigger signal to wake up the identification card 1. After the low-frequency trigger signal is transmitted, the low-frequency trigger module 201 is turned off and MCU204 controls the wireless communication module 202 to be turned on to wait for the identification card 1 to transmit occupant information.

[0035] See Figure 2 The MCU204 controls the low-frequency trigger power supply control circuit 205 by outputting a low-frequency trigger power supply control signal, which can turn the low-frequency trigger power supply on or off. After the MCU204 is woken up by an interrupt, it sends the trigger signal transmission signal to the low-frequency trigger module 201, thereby sending the trigger signal outward.

[0036] See Figure 3 The specific working process of the low-power occupant information automatic detection device of the present invention is as follows:

[0037] Step 1: Turn off the low-frequency trigger module 201: Cut off the power supply to the low-frequency trigger module 201 via MCU204;

[0038] Step 2: Turn off the wireless communication module 202: Configure the wireless communication module 202 to work in standby mode via MCU204;

[0039] Step 3, MCU204 sleep mode: The program instruction causes the MCU to enter sleep mode; when the motion sensing module 203 detects the switching between the moving and stationary states of the vehicle, an interrupt is triggered, and the next step is initiated; if the motion sensing module 203 does not trigger an interrupt, the MCU204 continues to sleep.

[0040] Step 4: MCU204 Master Clock Operation: The MCU204 master clock enables the MCU204 to enter high-performance mode to complete subsequent data transmission and reception, data storage, and related control operations.

[0041] Step 5: Turn on the low-frequency trigger module 201: Control the MCU204 to turn on the power supply of the low-frequency trigger module 201 and send a low-frequency trigger signal;

[0042] Step 6: After the low-frequency trigger signal is sent, turn off the low-frequency trigger module 201: After the signal is sent, control the MCU204 to turn off the power supply of the low-frequency trigger module 201.

[0043] Step 7: Turn on the wireless communication module 202: Control the wireless communication module 202 to exit standby mode via MCU204 instructions, and prepare to receive the occupant information replied by the identification card 1;

[0044] Step 8: Receive and record passenger information uploaded from identification card 1;

[0045] Step 9: Determine if timeout has occurred: If no timeout has occurred, continue to receive and record passenger information uploaded by identification card 1; if a timeout has occurred, shut down wireless communication module 202, and then MCU 204 enters sleep mode.

[0046] MCU is an abbreviation for Microcontroller Unit, also known as a single-chip microcomputer or microcontroller. It is a chip-level computer that integrates a central processing unit with a reduced frequency and specifications, and peripheral interfaces such as memory, counters, A / D converters, UART, PWM, and DMA onto a single chip, allowing for different combinations of control for different applications.

[0047] The low-power automatic passenger information detection device of the present invention consists of an identification card 1 and a card reader 2. Each passenger carries an identification card 1 containing personal information when boarding the vehicle. The card reader 2 is installed on the vehicle. Passengers do not need to actively swipe their cards when getting on and off the vehicle. The passenger information is automatically detected by the card reader 2 through wireless communication with the identification card 1.

[0048] According to one embodiment of the present invention, the low-frequency trigger module 201 is connected to the low-frequency trigger antenna 3, wherein the frequency range of the low-frequency trigger antenna 3 is 122KHz to 128KHz.

[0049] According to one embodiment of the present invention, the wireless communication module 202 is connected to the high-frequency antenna 4, wherein the frequency range of the high-frequency antenna 4 is 2.3 GHz to 2.5 GHz.

[0050] According to one embodiment of the present invention, the card reader 2 is powered by a battery 5, that is, the card reader 2 uses the battery 5 for power. The battery 5 is any one of lithium manganese oxide battery, lithium iron phosphate battery, lithium-manganese dioxide battery, and lithium-thionyl chloride battery. The modules with higher power consumption in the card reader 2 are the wireless communication module 202 and the low-frequency triggering module 201. The motion sensing module 203 has extremely low power consumption. The MCU 204 has high power consumption when working and extremely low power consumption when in sleep mode. In order to obtain a lower average power consumption, the MCU 204 usually enters sleep mode. Compared to existing technologies, the low-power occupant information automatic detection device of the present invention has low power consumption. In standby mode, only the MCU and motion sensing module work. The MCU works in sleep mode, and the motion sensing module itself has very low power consumption. The low-frequency triggering module can make the identification card 1 wake up immediately and send occupant information, reducing the working time of the MCU 204 and the wireless communication module 202 (reducing the working time of the card reader 2 to reduce the average current and achieve the effect of low power consumption). The card reader can work for a long time with the help of the internal battery without external power supply and does not depend on the vehicle to provide power.

[0051] Of course, in addition to using the identification card 1 and the card reader 2, UWB precise positioning tags and UWB card readers can also be used. UWB precise positioning tags and UWB card readers can also achieve the purpose of this invention. Three or more UWB card readers can be installed in different positions in the carriage to perform two-dimensional positioning of the UWB precise positioning tags carried by passengers in the carriage, determine whether passengers are getting on or off the train, and read the passenger information in the UWB precise positioning tags.

[0052] The present invention also provides a transportation vehicle, including the aforementioned low-power automatic occupant information detection device. The transportation vehicle refers to mining cars, electric locomotives, monorail cranes, railway freight cars, passenger cars, etc., that is, the transportation vehicle part of transportation.

[0053] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A low-power automatic occupant information detection device, characterized in that: Includes an identification card (1) carried by each occupant and storing personal information and a card reader (2) installed on the vehicle, the card reader (2) being powered by a battery (5); The card reader (2) is wirelessly connected to the identification card (1); The card reader (2) is used to read the passenger personal information in the identification card (1); The card reader (2) includes a low-frequency trigger module (201), a wireless communication module (202), a motion sensing module (203), and an MCU (204). The low-frequency trigger module (201) is used to wake up the identification card (1) and make the identification card (1) send a wireless signal; After receiving the trigger signal from the motion sensing module (203), the MCU (204) will send a command to the low-frequency trigger module (201). The wireless communication module (202) is used to receive the high-frequency wireless signal sent by the identification card (1) after it is woken up; The wireless communication module (202) and the MCU (204) transmit information through a communication protocol; The motion sensing module (203) is used to detect whether the vehicle is in motion; The MCU (204) is woken up from the sleep state of low power mode under the control of the motion sensing module (203). That is, when the motion sensing module (203) detects that the vehicle has switched from a stationary state to a moving state, it will trigger the wake-up of the MCU (204). Alternatively, the MCU (204) may be interrupted while in operation under the control of the motion sensing module (203). That is, when the motion sensing module (203) detects that the vehicle has switched from a moving state to a stationary state, it will trigger an interrupt to wake up the MCU (204). The MCU (204) controls the low-frequency trigger module (201) to transmit a low-frequency trigger signal to wake up the identification card (1). After the low-frequency trigger signal is transmitted, the low-frequency trigger module (201) is turned off and the MCU (204) controls the wireless communication module (202) to be turned on to wait for the identification card (1) to transmit passenger information.

2. The low-power occupant information automatic detection apparatus according to claim 1, characterized by: The low-frequency trigger module (201) is connected to the low-frequency trigger antenna (3).

3. The low-power occupant information automatic detection apparatus according to claim 1, characterized by: The wireless communication module (202) is connected to the high-frequency antenna (4).

4. The low-power occupant information automatic detection apparatus according to claim 1, characterized by: The battery (5) is any one of lithium manganese oxide battery, lithium iron phosphate battery, lithium-manganese dioxide battery and lithium-thionyl chloride battery.

5. The low-power occupant information automatic detection apparatus according to claim 1, characterized by: The wireless communication module (202) and the MCU (204) use the SPI bus communication protocol; the identification card (1) and the MCU (204) use a custom over-the-air protocol.

6. A vehicle characterized by, Includes the low-power occupant information automatic detection device as described in any one of claims 1-5.

Images