Position detection sensor

Abstract

The utility model discloses a position detection sensor, which comprises a precise ruler source assembly, a plurality of passive rulers and a power supply, the precise ruler source assembly comprises a plurality of precise ruler source units; each fine ruler source unit comprises a fine ruler PCB, a PCB plane WPT excitation coil, a PCB plane composite signal orthogonal decoding coil and a fine ruler mixed signal microprocessor, the PCB plane WPT excitation coil can be controlled to wirelessly supply power to the outside, and electromagnetic wave signals can be received through the PCB plane composite signal orthogonal decoding coil; each passive ruler comprises a plurality of passive ruler units; each passive ruler unit comprises a passive ruler PCB, a PCB plane WPT receiving coil, a PCB plane composite signal transmitting coil and a passive ruler mixed signal microprocessor, and can receive wireless power through the PCB plane WPT so as to support the passive ruler mixed signal microprocessor to work and send out an electromagnetic wave signal carrying position information; and the power supply can provide working power for the precise ruler source assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning, in particular to a position detection sensor. Background Art

[0002] At present, Gray busbar positioning technology is widely used in industrial sites to detect the real-time position of handling equipment traveling along a specified track. However, since the Gray busbar is a whole piece with the same length as the track, the production process is complicated and the installation is troublesome. Moreover, damage or interference at a certain point will cause the entire system to be paralyzed and unusable. In addition, both the on-board and ground parts of the Gray busbar positioning technology need to be powered, which has a large demand for power and has limited use. Utility Model Content

[0003] The problem to be solved by the utility model is to provide a position detection sensor, the above-ground part of which is composed of multiple passive rulers, each passive ruler has the same hardware structure and operates independently of each other when in use, so that production and installation are convenient, and the failure of a single passive ruler does not affect the operation of other passive rulers. The stability and reliability are strong, and the repair can be completed by simply replacing and installing the failed passive ruler, so the maintenance is very convenient.

[0004] In order to solve the above technical problems, the utility model provides a position detection sensor, including a precision ruler source component, a plurality of passive rulers and a power supply;

[0005] The precision ruler source assembly is arranged on the mobile handling equipment, including a precision ruler mounting plate and a plurality of precision ruler source units arranged on the precision ruler mounting plate; each of the precision ruler source units includes a precision ruler PCB board, and a PCB plane WPT excitation coil, a PCB plane composite signal orthogonal decoding coil and a precision ruler mixed signal microprocessor arranged on the precision ruler PCB board; in each of the precision ruler source units: the precision ruler mixed signal microprocessor can control the PCB plane WPT excitation coil to wirelessly power the outside, and can also receive electromagnetic wave signals through the PCB plane composite signal orthogonal decoding coil;

[0006] The passive ruler is arranged along the running track of the mobile handling equipment, and each of the passive rulers includes a passive ruler mounting plate and a plurality of passive ruler units arranged on the passive ruler mounting plate; each of the passive ruler units includes a passive ruler PCB board, and a PCB plane WPT receiving coil, a PCB plane composite signal transmitting coil and a passive ruler mixed signal microprocessor arranged on the passive ruler PCB board; in each of the passive ruler units: the PCB plane WPT receiving coil can receive power wirelessly to support the operation of the passive ruler mixed signal microprocessor, and the passive ruler mixed signal microprocessor can control the PCB plane composite signal transmitting coil to emit an electromagnetic wave signal carrying position information when working;

[0007] The power supply can provide working power for the precision source component.

[0008] In the above-mentioned position detection sensor, when in use, the precision ruler source component moves with the mobile handling equipment on the running track, and through the principles of electromagnetic coupling and electromagnetic induction, it continuously wirelessly powers the passive ruler at the corresponding position of the track, and performs wireless signal transmission. Specifically: the PCB plane WPT excitation coil of the precision ruler source component continuously excites the magnetic field outward, wirelessly powers the PCB plane WPT receiving coil at the corresponding position of the track, and the PCB plane WPT receiving coil induces an induced electromotive force to power the corresponding passive ruler unit. The passive ruler mixed signal microprocessor of the passive ruler unit works to control the PCB plane composite signal transmitting coil to emit an electromagnetic wave signal carrying position information, thereby completing the generation of the position signal. This signal will be received by the PCB plane composite signal orthogonal decoding coil of a precision ruler source unit, usually the precision ruler source unit that was powered before, and the signal reaches the precision ruler mixed signal microprocessor to complete the collection of the position information. The corresponding position information can be obtained after further processing.

[0009] Furthermore, the position detection sensor also includes an edge computing gateway, which is connected to all of the precision mixed signal microprocessors.

[0010] Furthermore, the power source is a movable power supply device.

[0011] Furthermore, a plurality of the precision ruler source units are evenly spaced and arranged on a side surface of the precision ruler mounting plate; a plurality of the passive ruler units are evenly spaced and arranged on a side surface of the passive ruler mounting plate.

[0012] Furthermore, the precision ruler mounting plate is in the shape of a rectangular plate, and its length direction is parallel to the arrangement direction of the precision ruler source units; the passive ruler mounting plate is in the shape of a rectangular plate, and its length direction is parallel to the arrangement direction of the passive ruler units.

[0013] Further, the PCB plane WPT excitation coil and the PCB plane composite signal orthogonal decoding coil are both rectangular coils, and the PCB plane WPT excitation coil and the PCB plane composite signal orthogonal decoding coil both have one side parallel to the arrangement direction of the precision source unit;

[0014] The PCB planar WPT receiving coil and the PCB planar composite signal transmitting coil are both rectangular coils, and the PCB planar WPT receiving coil and the PCB planar composite signal transmitting coil are both rectangular coils and have one side parallel to the arrangement direction of the passive ruler unit.

[0015] Furthermore, the PCB plane composite signal orthogonal decoding coil is arranged inside the PCB plane WPT excitation coil, and two PCB plane composite signal orthogonal decoding coils are arranged inside each PCB plane WPT excitation coil; the PCB plane composite signal transmitting coil is arranged inside the PCB plane WPT receiving coil.

[0016] Furthermore, four precision ruler source units are evenly spaced and arranged on each precision ruler mounting plate, and the center distance between the precision ruler source units is 300 mm; in each precision ruler source unit:

[0017] The dimension of the precision PCB board along the arrangement direction of the precision source units is 250mm; the side dimension of the PCB plane WPT excitation coil parallel to the arrangement direction of the precision source units is 230mm, and the other side dimension is 210mm; the side dimension of the PCB plane composite signal orthogonal decoding coil parallel to the arrangement direction of the precision source units is 60mm, and the other side dimension is 200mm.

[0018] Furthermore, five passive ruler units are arranged evenly spaced on the passive ruler mounting plate; the center distance between the passive ruler units is 400 mm; in each passive ruler unit:

[0019] The dimension of the passive ruler PCB board along the arrangement direction of the precision ruler source unit is 185mm; the side dimension of the PCB plane WPT receiving coil parallel to the arrangement direction of the precision ruler source unit is 130mm, and the other side dimension is 75mm; the side dimension of the PCB plane composite signal transmitting coil parallel to the arrangement direction of the precision ruler source unit is 100mm, and the other side dimension is 70mm.

[0020] Furthermore, each of the PCB plane WPT receiving coils coincides with the center of the internal PCB plane composite signal transmitting coil; each of the PCB plane WPT excitation coils is symmetrically provided with the PCB plane composite signal orthogonal decoding coils on both sides of the midline along the arrangement direction of the precision source unit.

[0021] In summary, the above position detection sensor has the advantages of Gray busbar, can accurately and quickly perform wear-free non-contact absolute continuous position detection, has strong pollution resistance and anti-interference ability, etc., and solves the pain points of users using Gray busbar:

[0022] (1) Gray busbar is a customized product, and spare parts must also be customized, with a long production cycle, while passive ruler) and passive ruler unit are standardized product components with the same structure, easy to produce and process, and short cycle;

[0023] (2) Gray busbar is installed as a whole, which is troublesome to hoist and install on site, while passive ruler is spliced ​​in sections, which is convenient for single-person operation and maintenance. It does not require mechanical crane equipment and can be carried and replaced by one person, making installation and replacement convenient and quick;

[0024] (3) Gray busbars require skilled personnel to repair or maintain, and the fault handling cycle is long and the cost is high. However, the utility model only needs to repair the passive ruler unit in the damaged area, replace the faulty part and calibrate it before use. The fault recovery is fast, the cost is low, and the subsequent stability is as good as before.

[0025] (4) Because the Gray busbar works as a whole, damage or interference at a certain point will cause the entire system to be paralyzed and unusable, while damage or failure of a single passive ruler will not affect other ranging parts;

[0026] (5) Both the onboard and ground parts of the Gray busbar require power supply, while the passive ruler does not require power supply. The equipment has a long service life, is easy to detect and maintain, and has few limitations in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In the attached picture:

[0028] Figure 1 It is a schematic diagram of a scale of the position detection sensor of the utility model.

[0029] Figure 2 It is a schematic diagram of a vernier of the position detection sensor of the utility model.

[0030] Figure 3 This is a structural diagram of the scale unit of the position detection sensor of the utility model.

[0031] In the figure, 1. precision ruler source component; 11. precision ruler mounting plate; 12. precision ruler source unit; 121. precision ruler PCB board; 122. PCB plane WPT excitation coil; 123. PCB plane composite signal orthogonal decoding coil; 124. precision ruler mixed signal microprocessor; 2. passive ruler; 21. passive ruler mounting plate; 22. passive ruler unit; 221. passive ruler PCB; 222. PCB plane WPT receiving coil; 223. PCB plane composite signal transmitting coil; 224. passive ruler mixed signal microprocessor; 3. power supply; 4. edge computing gateway. DETAILED DESCRIPTION

[0032] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation modes is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0033] Wireless charging, also known as wireless power transmission (WPT), uses coupled electromagnetic fields as a connection to achieve power transfer.

[0034] Printed Circuit Board (PCB), also known as printed circuit board, is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. Because it is made by electronic printing, it is called a "printed" circuit board. PCBA (Printed Circuit Board Assembly) is the entire process of PCB blank board through SMT mounting and then DIP plug-in, referred to as PCBA process. SMT and DIP are both ways to integrate parts on PCB board. The main difference is that SMT does not require drilling holes on PCB, while DIP requires the PIN pins of parts to be inserted into the already drilled holes. SMT Surface Mounted Technology, mainly uses a mounting machine to mount some tiny parts on the PCB board. DIP Dual In-line Package, double-row pins are "plug-ins", that is, inserting parts on the PCB board. Because the parts are large in size and not suitable for mounting or the manufacturer's production process cannot use SMT technology, the parts are integrated in the form of plug-ins.

[0035] Example 1

[0036] Figure 1-3 A position detection sensor of the utility model is shown. Figure 1-3 As shown, the position detection sensor includes a precision ruler source component 1, a plurality of passive rulers 2 and a power source 3.

[0037] The precision ruler source assembly 1 is arranged on a mobile handling device, including a precision ruler mounting plate 11 and a plurality of precision ruler source units 12 arranged on the precision ruler mounting plate 11; each precision ruler source unit 12 includes a precision ruler PCB board 121, and a PCB plane WPT excitation coil 122, a PCB plane composite signal orthogonal decoding coil 123 and a precision ruler mixed signal microprocessor 124 arranged on the precision ruler PCB board 121; in each precision ruler source unit 12: the precision ruler mixed signal microprocessor 124 can control the PCB plane WPT excitation coil 122 to wirelessly power the outside, and can also receive electromagnetic wave signals through the PCB plane composite signal orthogonal decoding coil 123.

[0038] The precision ruler source component 1 is installed on the top of an extension rod on the mobile handling equipment, close to the passive ruler. When the mobile handling equipment moves forward, the precision ruler source component 1 will also move parallel to the passive ruler 2. The precision ruler source component 1 is a visual pointer for address measurement of the mobile handling equipment, so during system operation and daily maintenance, it must be installed firmly, so that the outer plane of the precision ruler source component 1 and the passive ruler 2 are always kept at a distance of 50 to 120 mm, and the board surface is arranged as directly as possible. It cannot collide with other objects during movement.

[0039] The passive ruler 2 is arranged along the running track of the mobile handling equipment, and each passive ruler 2 includes a passive ruler mounting plate 21 and a plurality of passive ruler units 22 arranged on the passive ruler mounting plate 21; each passive ruler unit 22 includes a passive ruler PCB board 221, and a PCB plane WPT receiving coil 222, a PCB plane composite signal transmitting coil 223 and a passive ruler mixed signal microprocessor 224 arranged on the passive ruler PCB board 221; in each passive ruler unit 22: the PCB plane WPT receiving coil 222 can receive power wirelessly to support the operation of the passive ruler mixed signal microprocessor 224, and the passive ruler mixed signal microprocessor 224 can control the PCB plane composite signal transmitting coil 223 to emit an electromagnetic wave signal carrying position information when working.

[0040] The passive ruler 2 does not need to be powered, and multiple passive rulers 2 are arranged near the running track of the mobile handling equipment. During the driving of the mobile handling equipment, the precision ruler source component 1 moves forward or backward along the arrangement direction of the passive ruler 2 at a certain interval. The passive ruler 2 is a key component of the system address detection. It is a standard measuring ruler for address detection. The length of the steel ruler radiates the distance required for detection.

[0041] The entire ground part is installed in sections without connection. The damage or failure of a single passive ruler 2 does not affect the operation of the system, and has natural interference and fault isolation capabilities. For damaged or faulty passive rulers 2, they can be replaced with spare parts in stock, which does not affect the inspection and maintenance of mobile equipment and is maintenance-free.

[0042] The power supply 3 can provide working electricity for the precision ruler source assembly 1 .

[0043] The position detection sensor of the utility model adopts a vehicle inspection mode. The ground part is composed of a plurality of passive rulers 2 arranged in an array and does not require power supply. The vehicle part is composed of a precision ruler source component 1 and is powered by a power supply 3. When in use, the precision ruler source component 1 is set on the mobile conveying equipment, and the passive ruler 2 is arranged along the running track of the mobile conveying equipment. The precision ruler source component 1 moves on the running track with the mobile conveying equipment, continuously wirelessly powers the passive ruler 2 at the corresponding position of the track, and performs wireless signal transmission. Specifically: the PCB plane WPT excitation coil 122 of the precision ruler source component 1 continuously excites the magnetic field outward, wirelessly powers the PCB plane WPT receiving coil 222 at the corresponding position of the track, and the PCB plane WPT receiving coil 222 induces an induced electromotive force to power the corresponding passive ruler unit 22. The passive ruler mixed signal microprocessor 224 of the passive ruler unit 22 works to control the PCB plane composite signal transmitting coil 223 to emit an electromagnetic wave signal carrying position information, thereby completing the generation of the position signal. This signal will be received by the PCB plane composite signal orthogonal decoding coil 123 of a precision ruler source unit 12, usually the precision ruler source unit 12 that was powered before, and the signal arrives at the precision ruler mixed signal microprocessor 124 to complete the collection of the position information. The corresponding position information can be obtained after further processing.

[0044] Optionally, the position detection sensor also includes an edge computing gateway 4, which is connected to all precision mixed signal microprocessors 124. The edge computing gateway 4 can communicate with the precision source component 1 through CAN. Each precision mixed signal microprocessor 124 will first perform AD conversion on the received signal, converting the analog signal into a digital signal, and then pass it to the edge computing gateway 4. The edge computing gateway 4 integrates the relevant position information of each precision mixed signal microprocessor 124, further analyzes and processes to obtain the position information, and finally passes the position information to the host computer or control terminal to perform position control of the mobile handling equipment. The edge computing gateway 4 can use a high-performance microprocessor with a high-performance ARM Cortex-M4 32-bit RISC core.

[0045] Optionally, the power source 3 is a movable power supply device. Since the precision source assembly 1 moves with the mobile handling device, the precision source assembly 1 requires a movable power supply 3, and the power supply 3 can be set on the mobile handling device.

[0046] Optionally, a plurality of precision ruler source units 12 are evenly spaced and arranged on a side surface of the precision ruler mounting plate 11 ; a plurality of passive ruler units 22 are evenly spaced and arranged on a side surface of the passive ruler mounting plate 21 .

[0047] Optionally, the precision ruler mounting plate 11 is in the shape of a rectangular plate, and its length direction is parallel to the arrangement direction of the precision ruler source units 12 ; the passive ruler mounting plate 21 is in the shape of a rectangular plate, and its length direction is parallel to the arrangement direction of the passive ruler units 22 .

[0048] Optionally, the PCB plane WPT excitation coil 122 and the PCB plane composite signal orthogonal decoding coil 123 are both rectangular coils, and the PCB plane WPT excitation coil 122 and the PCB plane composite signal orthogonal decoding coil 123 both have one side parallel to the arrangement direction of the precision ruler source unit 12; the PCB plane WPT receiving coil 222 and the PCB plane composite signal transmitting coil 223 are both rectangular coils, and the PCB plane WPT receiving coil 222 and the PCB plane composite signal transmitting coil 223 are both rectangular coils, and the PCB plane WPT receiving coil 222 and the PCB plane composite signal transmitting coil 223 are both rectangular coils, and both have one side parallel to the arrangement direction of the passive ruler unit 22.

[0049] Each precision ruler source unit 12 and passive ruler unit 22 innovatively adopts an integrated PCBA design method, which has a simple structure, is easy to manufacture, and the corresponding coils and processors are easy to integrate. The coils are all PCB planar coils; their advantages are that the PCB planar coils are small in size, high in power density, short in magnetic circuit, small in leakage inductance, short in heat conduction distance, large in magnetic surface area, and good in heat dissipation. The windings made of PCB have a small skin effect, allow a high current density, which can reach about 20A / mm, and are easy to produce.

[0050] During installation, the PCB plane WPT excitation coil 122, the PCB plane composite signal orthogonal decoding coil 123, the PCB plane WPT receiving coil 222 and the PCB plane composite signal transmitting coil 223 are all vertically aligned, and the heights in the vertical direction are kept consistent.

[0051] Optionally, the PCB plane composite signal orthogonal decoding coil 123 is arranged inside the PCB plane WPT excitation coil 122, and two PCB plane composite signal orthogonal decoding coils 123 are arranged inside each PCB plane WPT excitation coil 122; the PCB plane composite signal transmitting coil 223 is arranged inside the PCB plane WPT receiving coil 222.

[0052] Optionally, four precision ruler source units 12 are evenly spaced and arranged on each precision ruler mounting plate 11, and the center distance of the precision ruler source unit 12 is 300 mm. In each precision ruler source unit 12: the size of the precision ruler PCB board 121 along the arrangement direction of the precision ruler source unit 12 is 250 mm; the side size W of the PCB plane WPT excitation coil 122 parallel to the arrangement direction of the precision ruler source unit 12 is 250 mm; 122 230mm, the other side size H 122 210mm; the side dimension W of the PCB plane composite signal orthogonal decoding coil 123 parallel to the precise source unit 12 in the arrangement direction123 60mm, the other side size H 123 The dimensions described here are the basic dimensions of the outer boundary of the coil. In actual production, the dimensions are allowed to be within a certain tolerance range according to the process and use requirements.

[0053] Optionally, five passive ruler units 22 are arranged evenly spaced on the passive ruler mounting plate 21; the center distance of the passive ruler unit 22 is 400 mm. In each passive ruler unit 22: the size of the passive ruler PCB board 221 along the arrangement direction of the precision ruler source unit 12 is 185 mm; the side size W of the PCB plane WPT receiving coil 222 parallel to the arrangement direction of the precision ruler source unit 12 is 185 mm; 222 130mm, the other side size H 222 The side dimension W of the PCB plane composite signal transmitting coil 223 parallel to the arrangement direction of the precision source unit 12 is 75 mm; 223 100mm, the other side size H 223 The size described here is the basic size of the outer boundary of the coil. In actual production, the size is allowed to be within a certain tolerance range according to the process and use requirements.

[0054] In addition, during the actual installation process, the passive rulers 2 are arranged along the track, and it is also necessary to ensure that the center distance between two adjacent passive ruler units 22 between adjacent passive rulers 2 is 400 mm.

[0055] Optionally, each PCB plane WPT receiving coil 222 coincides with the center of the internal PCB plane composite signal transmitting coil 223; each PCB plane WPT excitation coil 122 is symmetrically provided with PCB plane composite signal orthogonal decoding coils 123 on both sides of the midline along the arrangement direction of the precision source unit 12.

[0056] Optionally, a shell is provided on the precision ruler mounting plate 11 and the passive ruler mounting plate 21 to seal and protect the PCB board mounted thereon. The precision ruler mounting plate 11, the passive ruler mounting plate 21 and the shell are all made of non-metallic materials, such as industrial epoxy resin and other materials, which have good aging resistance, can adapt to deformation caused by thermal expansion and contraction, vibration and the like, and can resist harsh environments.

[0057] Optionally, the precision mixed signal microprocessor 124 in the precision source component 1 adopts a 32-bit Cortex-M4 core with an operating speed of up to 170MHz. The precision mixed signal microprocessor 124 wirelessly powers and receives electromagnetic signals through the corresponding PCB plane WPT excitation coil 122 and the PCB plane composite signal orthogonal decoding coil 123, which belongs to the prior art. Specifically, it can be: the PCB plane composite signal orthogonal decoding coil 123 performs signal processing through a common mode suppression circuit, a filtering circuit and a differential amplifier circuit, and finally transmits the signal to the precision mixed signal microprocessor 124 to complete the signal reception. The PCB plane WPT excitation coil 122 is connected to the precision mixed signal microprocessor 124 through a MOSFET full-bridge circuit and a MOSFET drive circuit to form an excitation source for wireless power supply.

[0058] Optionally, the passive ruler mixed signal microprocessor 224 of the passive ruler 2 can be a mixed signal microprocessor with a Cortex-M4 core with a main frequency of 170MHz. The passive ruler mixed signal microprocessor 224 realizes wireless power reception and wireless signal transmission through the PCB plane WPT receiving coil 222 and the PCB plane composite signal transmitting coil 223, which belongs to the prior art. Specifically, the passive ruler mixed signal microprocessor 224 completes the electrical signal processing through the mixed resonance circuit, the rectifier circuit, the overvoltage and overcurrent protection circuit, the filter circuit and the DCDC circuit in turn, and finally provides a stable voltage to the passive ruler mixed signal microprocessor 224 to ensure its stable and reliable operation. The passive ruler mixed signal microprocessor 224 is connected to the PCB plane composite signal transmitting coil 223 through a composite signal amplification circuit and a common mode suppression circuit.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit its protection scope. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the utility model, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the utility model, but these changes, modifications or equivalent substitutions are all within the protection scope of the pending claims of the utility model.

Claims

1. A position detection sensor, characterized in that: It comprises a precision ruler source component (1), a plurality of passive rulers (2) and a power source (3); The precision ruler source assembly (1) is arranged on a mobile handling device, and comprises a precision ruler mounting plate (11) and a plurality of precision ruler source units (12) arranged in an array on the precision ruler mounting plate (11); each of the precision ruler source units (12) comprises a precision ruler PCB board (121), and a PCB plane WPT excitation coil (122), a PCB plane composite signal orthogonal decoding coil (123) and a precision ruler mixed signal microprocessor (124) arranged on the precision ruler PCB board (121); in each of the precision ruler source units (12): the precision ruler mixed signal microprocessor (124) can control the PCB plane WPT excitation coil (122) to wirelessly power the outside, and can also receive electromagnetic wave signals through the PCB plane composite signal orthogonal decoding coil (123); The passive ruler (2) is arranged along the running track of the mobile handling equipment, and each of the passive rulers (2) comprises a passive ruler mounting plate (21) and a plurality of passive ruler units (22) arranged on the passive ruler mounting plate (21); each of the passive ruler units (22) comprises a passive ruler PCB board (221), and a PCB plane WPT receiving coil (222), a PCB plane composite signal transmitting coil (223) and a passive ruler mixed signal microprocessor (224) arranged on the passive ruler PCB board (221); in each of the passive ruler units (22): the PCB plane WPT receiving coil (222) can receive power wirelessly to support the operation of the passive ruler mixed signal microprocessor (224); when the passive ruler mixed signal microprocessor (224) is in operation, it can control the PCB plane composite signal transmitting coil (223) to emit an electromagnetic wave signal carrying position information; The power source (3) can provide working electricity for the precision ruler source component (1).

2. A position detection sensor according to claim 1, characterized in that: It also includes an edge computing gateway (4), and the edge computing gateway (4) is connected to all of the precision mixed signal microprocessors (124).

3. A position detection sensor according to claim 1, characterized in that: The power source (3) is a movable power supply device.

4. A position detection sensor according to claim 1, characterized in that: A plurality of the precision ruler source units (12) are arranged at even intervals on a side surface of the precision ruler mounting plate (11); and a plurality of the passive ruler units (22) are arranged at even intervals on a side surface of the passive ruler mounting plate (21).

5. A position detection sensor according to claim 4, characterized in that: The precision ruler mounting plate (11) is in the shape of a rectangular plate, and its length direction is parallel to the arrangement direction of the precision ruler source units (12); the passive ruler mounting plate (21) is in the shape of a rectangular plate, and its length direction is parallel to the arrangement direction of the passive ruler units (22).

6. A position detection sensor according to claim 4, characterized in that: The PCB plane WPT excitation coil (122) and the PCB plane composite signal orthogonal decoding coil (123) are both rectangular coils, and the PCB plane WPT excitation coil (122) and the PCB plane composite signal orthogonal decoding coil (123) both have one side parallel to the arrangement direction of the precision source unit (12); The PCB plane WPT receiving coil (222) and the PCB plane composite signal transmitting coil (223) are both rectangular coils, and the PCB plane WPT receiving coil (222) and the PCB plane composite signal transmitting coil (223) are both rectangular coils and have one side parallel to the arrangement direction of the passive ruler unit (22).

7. A position detection sensor according to claim 6, characterized in that: The PCB plane composite signal orthogonal decoding coil (123) is arranged inside the PCB plane WPT excitation coil (122), and two PCB plane composite signal orthogonal decoding coils (123) are arranged inside each PCB plane WPT excitation coil (122); The PCB planar composite signal transmitting coil (223) is arranged inside the PCB planar WPT receiving coil (222).

8. A position detection sensor according to claim 7, characterized in that: Four precision ruler source units (12) are arranged evenly spaced on each precision ruler mounting plate (11), and the center distance between the precision ruler source units (12) is 300 mm; in each precision ruler source unit (12): The dimension of the precision-scale PCB board (121) along the arrangement direction of the precision-scale source units (12) is 250 mm; the dimension of the side of the PCB plane WPT excitation coil (122) parallel to the arrangement direction of the precision-scale source units (12) is 230 mm, and the dimension of the other side is 210 mm; the dimension of the side of the PCB plane composite signal orthogonal decoding coil (123) parallel to the arrangement direction of the precision-scale source units (12) is 60 mm, and the dimension of the other side is 200 mm.

9. A position detection sensor according to claim 7, characterized in that: Five passive ruler units (22) are arranged evenly spaced on the passive ruler mounting plate (21); the center distance between the passive ruler units (22) is 400 mm; and in each passive ruler unit (22): The dimension of the passive ruler PCB board (221) along the arrangement direction of the precision ruler source unit (12) is 185 mm; the dimension of the side of the PCB plane WPT receiving coil (222) parallel to the arrangement direction of the precision ruler source unit (12) is 130 mm, and the dimension of the other side is 75 mm; the dimension of the side of the PCB plane composite signal transmitting coil (223) parallel to the arrangement direction of the precision ruler source unit (12) is 100 mm, and the dimension of the other side is 70 mm.

10. A position detection sensor according to claim 7, characterized in that: Each of the PCB plane WPT receiving coils (222) coincides with the center of the internal PCB plane composite signal transmitting coil (223); Each of the PCB plane WPT excitation coils (122) is symmetrically provided with the PCB plane composite signal orthogonal decoding coils (123) on both sides of a midline along the arrangement direction of the precision source units (12).

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