CN216132465U

CN216132465U - Communication and dot matrix output fusion type magnetic navigation sensor

Info

Publication number: CN216132465U
Application number: CN202122105790.8U
Authority: CN
Inventors: 胡祺君; 陈连双; 张扬; 温昌平
Original assignee: Suzhou Memsplus Sensing Technology Co ltd
Current assignee: Suzhou Memsplus Sensing Technology Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-03-25
Anticipated expiration: 2031-09-02

Abstract

The utility model discloses a communication and dot matrix output fusion type magnetic navigation sensor which comprises a single chip microcomputer and a power supply module. The single chip microcomputer is electrically connected with a communication module used for outputting bus signals, the single chip microcomputer is electrically connected with a dot matrix output module used for outputting dot matrix signals, and the single chip microcomputer is connected with a Hall sensor matrix used for acquiring magnetic navigation signals. The advantages are that: and a better positioning function is realized through the complementation of lattice output and communication output.

Description

Communication and dot matrix output fusion type magnetic navigation sensor

Technical Field

The utility model relates to the field of navigation, in particular to a magnetic navigation sensor integrating communication and dot matrix output.

Background

The magnetic navigation sensor technology is a test platform which integrates magnetic signal detection and relative motion between a vehicle and a magnetic track nail into a whole by utilizing the magnetic field characteristic of the magnetic track nail. The linear motion, S-shaped motion, acceleration and other motion modes of the vehicle are designed by simulating the navigation and automatic driving of the vehicle magnetic track nail on the spot on the platform, and a software program is written to realize the functional requirements. The existing magnetic navigation sensor adopts a single communication output or lattice output signal mode to perform navigation, the navigation response is slow, and the precision control needs to be improved.

In view of the above, it is necessary to provide a magnetic navigation sensor of the communication and dot matrix output fusion type that solves the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a communication and dot matrix output fusion type magnetic navigation sensor, which overcomes the defects of the prior art, and adopts the technical scheme that:

a communication and dot matrix output fusion type magnetic navigation sensor comprises a single chip microcomputer and a power supply module. The single chip microcomputer is electrically connected with a communication module used for outputting bus signals, the single chip microcomputer is electrically connected with a dot matrix output module used for outputting dot matrix signals, and the single chip microcomputer is connected with a Hall sensor matrix used for acquiring magnetic navigation signals.

Further, the method comprises the following steps: the communication module comprises a CAN bus.

Further, the method comprises the following steps: the CAN bus adopts a TJF1051 communication chip, and a first isolation circuit used for isolating the power supply module and the CAN bus is arranged between the communication module and the single chip microcomputer.

Further, the method comprises the following steps: the communication module comprises an RS485 bus.

Further, the method comprises the following steps: the RS485 bus adopts a MAX3485E communication chip, and a second isolation circuit used for isolating the power supply module and the RS485 bus is arranged between the communication module and the single chip microcomputer.

Further, the method comprises the following steps: the communication module includes an RS232 bus.

Further, the method comprises the following steps: the RS232 bus adopts a MAX3232E communication chip.

Further, the method comprises the following steps: the Hall sensor matrix is formed by arraying a plurality of Hall sensors at a distance of 10 mm.

The utility model has the beneficial effects that:

1. the better positioning function is realized through the complementation of lattice output and communication output;

2. the use is more convenient, and the device can be adapted to one of two functions of communication and dot matrix or can be used simultaneously by the communication and the dot matrix.

Drawings

FIG. 1 is a block schematic diagram of a magnetic navigation sensor of the communication and dot matrix output fusion type according to an embodiment of the present application;

FIG. 2 is a schematic structural circuit diagram of a main controller of a magnetic navigation sensor of the communication and dot matrix output fusion type according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a power supply circuit of a magnetic navigation sensor of the communication and dot matrix output fusion type according to an embodiment of the present application;

FIG. 4 is a schematic diagram of an RS232 communication circuit of the magnetic navigation sensor of the fusion type of communication and dot matrix output according to the embodiment of the present application;

FIG. 5 is a schematic view of a CAN bus communication circuit of the magnetic navigation sensor of the fusion type of communication and dot matrix output according to the embodiment of the present application;

FIG. 6 is a schematic diagram of an RA485 bus communication circuit of the magnetic navigation sensor of the communication and dot matrix output fusion type according to the embodiment of the present application;

FIG. 7 is a schematic matrix diagram of Hall sensors of a magnetic navigation sensor of the communication and dot matrix output fusion type of an embodiment of the present application;

FIG. 8 is a schematic circuit diagram of a dot matrix output module of a magnetic navigation sensor of the communication and dot matrix output fusion type according to an embodiment of the present application;

labeled as: 1. a single chip microcomputer; 2. a communication module; 3. a dot matrix output module; 4. a hall sensor matrix.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the embodiment of the application provides a communication and dot matrix output fused magnetic navigation sensor, which comprises a single chip microcomputer 1 and a power module, wherein the single chip microcomputer 1 is electrically connected with a communication module 2 for outputting bus signals, the single chip microcomputer 1 is electrically connected with a dot matrix output module 3 for outputting dot matrix signals, and the single chip microcomputer 1 is connected with a hall sensor matrix 4 for acquiring magnetic navigation signals.

It should be noted that the communication module 2 directly performs bus communication, and the dot matrix output module 3 outputs dot matrix signals to an external control device, such as a plc or some interface module. The dot matrix output module 3 outputs the cheap dot matrix signals of the magnetic navigation sensor in an active signal output mode.

When the magnetic navigation device works, the power supply module is switched on, the single chip microcomputer 1 reads the magnetic navigation signals acquired by the Hall sensor matrix 4, converts the magnetic navigation signals into navigation offset data, and outputs bus signals through the communication module 2 or is connected with external control equipment through the dot matrix output module 3 to output control signals.

In the design, the singlechip 1 is simultaneously connected with the communication module 2 and the dot matrix output module 3, and a better positioning function is realized through the complementation of dot matrix output and communication output; the customer can select 3 interfaces of dot matrix output module or 2 interfaces of communication module output according to the demand of self, and it is more convenient to use, can one of two kinds of functions of adaptation communication and dot matrix or two kinds of simultaneous use of communication and dot matrix. The dot matrix output module 3 outputs signals in a 24V active signal output mode, namely, each Hall sensor corresponds to one path of 24V signals, 24V is output at the position corresponding to the 24V signals according to the read position of the Hall sensor, 0V is output at the position without signals, and therefore signal transmission can be more stable.

Specifically, the method comprises the following steps: as shown in fig. 5, the communication module 2 comprises a CAN bus.

In the design, the CAN bus communication has the advantages of strong anti-interference capability, long transmission distance, low cost and strong real-time property.

Specifically, the method comprises the following steps: as shown in fig. 1 and fig. 5, the CAN bus employs a TJF1051 communication chip, and a first isolation circuit for isolating the power module from the CAN bus is disposed between the communication module 2 and the single chip microcomputer 1.

In the design, the first isolation circuit isolates the power module from the CAN bus, namely the first isolation circuit isolates the power supply of the Hall sensor from the CAN bus, so that the circuit of the CAN bus has better anti-interference performance and system stability. The first isolation circuit can reduce the influence of interference signals on the Hall sensor, so that the communication data in the communication module 2 is transmitted more stably.

Specifically, the method comprises the following steps: as shown in fig. 1, the communication module 2 comprises an RS485 bus.

The RS485 bus is a common serial bus standard, and adopts a balanced transmission and differential reception manner, so that the RS485 bus has the capability of suppressing common-mode interference.

In the above design, the RS485 bus is adopted for communication, which is beneficial to the stable operation of the system and has high communication speed. Meanwhile, the selection of the client is increased, so that the client is more convenient to use.

Specifically, the method comprises the following steps: as shown in fig. 6, the RS485 bus adopts a MAX3485E communication chip, and a second isolation circuit for isolating the power module from the RS485 bus is disposed between the communication module 2 and the single chip microcomputer 1.

In the design, the second isolating circuit isolates the power supply of the Hall sensor from the RS485, so that the circuit of the RS485 bus has better anti-interference performance and system stability. The second isolation circuit prevents interference signals on the RS485 bus from influencing the Hall sensor or causing destructive effect on the Hall sensor, so that the circuit of the RS485 bus has better performance in anti-interference performance and system stability, and communication data transmission of RS485 bus communication is more stable.

Specifically, the method comprises the following steps: as shown in fig. 1, the communication module 2 includes an RS232 bus.

The RS232 bus communication adopted in the design can facilitate the connection of different devices.

Specifically, the method comprises the following steps: as shown in FIG. 4, the RS232 bus adopts a MAX3232E communication chip for communication.

In the above design, the power consumption of the MAX3232E is low, and the heat generation degree during RS232 bus communication can be reduced.

Specifically, the method comprises the following steps: as shown in fig. 7, the hall sensor matrix 4 is formed by arranging a plurality of hall sensors in an array with a pitch of 10 mm.

It should be noted that the default hall sensor array pitch is 10mm, which can optimize the array effect.

In the above design, a plurality of hall sensors are combined into a matrix to increase the magnetic induction area, so the hall sensor matrix 4 can better monitor the magnetic field, and the navigation accuracy is ensured.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a communication and dot matrix output fusion type magnetic navigation sensor, includes singlechip (1) and power module, its characterized in that: the single chip microcomputer (1) is electrically connected with a communication module (2) used for outputting bus signals, the single chip microcomputer (1) is electrically connected with a dot matrix output module (3) used for outputting dot matrix signals, and the single chip microcomputer (1) is connected with a Hall sensor matrix (4) used for obtaining magnetic navigation signals.

2. The communication and dot matrix output fused magnetic navigation sensor according to claim 1, wherein: the communication module (2) comprises a CAN bus.

3. The communication and dot matrix output fused magnetic navigation sensor according to claim 2, wherein: the CAN bus adopts a TJF1051 communication chip, and a first isolation circuit used for isolating the power supply module and the CAN bus is arranged between the communication module (2) and the single chip microcomputer (1).

4. The communication and dot matrix output fused magnetic navigation sensor according to claim 1, wherein: the communication module (2) comprises an RS485 bus.

5. The communication and dot matrix output fused magnetic navigation sensor according to claim 4, wherein: the RS485 bus adopts a MAX3485E communication chip, and a second isolation circuit for isolating the power supply module and the RS485 bus is arranged between the communication module (2) and the single chip microcomputer (1).

6. The communication and dot matrix output fused magnetic navigation sensor according to claim 1, wherein: the communication module (2) comprises an RS232 bus.

7. The communication and dot matrix output fused magnetic navigation sensor according to claim 6, wherein: the RS232 bus adopts a MAX3232E communication chip.

8. The communication and dot matrix output fused magnetic navigation sensor according to claim 1, wherein: the Hall sensor matrix (4) is formed by arraying a plurality of Hall sensors at a distance of 10 mm.