Railway yard component positioning device

Abstract

The utility model discloses a railway yard component positioning device, and relates to equipment specially suitable for a wireless communication network. The method aims at solving the problems that an existing part positioning method is not accurate enough in positioning and possibly difficult to find, and comprises at least one positioning base station and at least one positioning terminal. The positioning base station comprises a Bluetooth angle of arrival (AOA) unit, a supporting rod, a base and a base station power supply; the Bluetooth AOA unit is fixed above the base through a supporting rod; a base station power supply is arranged in the base; the power supply input end of the Bluetooth AOA unit is electrically connected with a base station power supply through a power line; the positioning terminal comprises a terminal shell, and a Bluetooth processor and a terminal power supply which are fixed in the terminal shell; the radio frequency signal output and input end of the Bluetooth processor is in communication connection with the radio frequency signal input and output end of the Bluetooth AOA unit; the power input end of the Bluetooth processor is electrically connected with the power output end of the terminal power supply.

Description

Technical Field

[0001] The utility model relates to a device specifically applicable to a wireless communication network. Background Art

[0002] There is a wide variety and a large number of components stacked and stored in railway yards, which makes management relatively troublesome. The existing component positioning method mainly conducts manual inventory when components are warehoused and records their storage locations. However, this method has certain limitations: on the one hand, due to the relatively rough recording method, the recorded location information is often not precise enough; on the other hand, in the actual operation process, once a staff member moves these components for some reason without timely updating the location information or going through the corresponding reporting procedures, the original location record will become invalid, resulting in the inconsistency between the actual location and the recorded location of the components. In this case, it will be very difficult to find specific components, which will not only increase the labor intensity of workers but also may delay the progress of production plans or maintenance operations. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the problem that the existing component positioning method is not precise enough in positioning and may have difficulties in searching, and provides a component positioning device for railway yards.

[0004] The component positioning device for railway yards of the utility model includes at least one positioning base station and at least one positioning terminal;

[0005] The positioning base station includes a Bluetooth angle of arrival (AOA) unit, a support rod, a base, and a base station power supply;

[0006] The Bluetooth AOA unit is fixed above the base through the support rod;

[0007] The base is provided with a base station power supply; the power input end of the Bluetooth AOA unit is electrically connected to the base station power supply through a power cord;

[0008] The positioning terminal includes a terminal housing and a Bluetooth processor and a terminal power supply fixed in the terminal housing;

[0009] The radio frequency signal input and output end of the Bluetooth processor is communicatively connected to the radio frequency signal input and output end of the Bluetooth AOA unit;

[0010] The power input end of the Bluetooth processor is electrically connected to the power output end of the terminal power supply.

[0011] Further, the positioning terminal further includes an inertial measurement unit;

[0012] The attitude signal output end of the inertial measurement unit is electrically connected to the attitude signal input end of the Bluetooth processor;

[0013] The standby power supply instruction output terminal and the power-on supply instruction output terminal of the Bluetooth processor are electrically connected to the standby power supply instruction input terminal and the power-on supply instruction input terminal of the terminal power supply respectively.

[0014] Furthermore, the positioning terminal further includes at least one adjusting bolt and an adjusting knob;

[0015] The terminal housing is provided with a screw hole that is thread-matched with the adjusting bolt;

[0016] The adjusting knob is coaxially fixed on the outer wall of the adjusting bolt, so that the adjusting knob can drive the adjusting bolt to rotate.

[0017] Furthermore, the positioning terminal further includes a magnetic attraction component;

[0018] The magnetic attraction component is fixed on the outer wall of the positioning terminal.

[0019] Furthermore, the positioning terminal further includes an electronic tag;

[0020] The electronic tag is fixed inside the terminal housing.

[0021] Furthermore, the positioning terminal further includes an e-ink screen;

[0022] The terminal information display signal input terminal of the e-ink screen is electrically connected to the terminal information display signal output terminal of the Bluetooth processor.

[0023] Furthermore, the positioning base station further includes a plurality of moving wheels;

[0024] The plurality of moving wheels are arranged below the base.

[0025] Furthermore, there are three positioning base stations.

[0026] Furthermore, it further includes a positioning information monitoring terminal;

[0027] The positioning information input terminal of the positioning information monitoring terminal is electrically connected to the positioning information output terminal of the Bluetooth AOA unit.

[0028] The beneficial effects of the present utility model are as follows:

[0029] For the railway yard component positioning device of the present utility model, the Bluetooth AOA technology is adopted. Positioning base stations are deployed in the railway yard, and positioning terminals are fixedly installed on the components that need to be tracked. Through the communication between the base station and the terminal, accurate tracking of the component positions is achieved. When the component positions change, the system can automatically update the position information. Even if the components are moved without prior reporting, the accuracy of the position records can be ensured. In this way, no matter when and where, the management personnel can quickly and accurately find the required components, greatly improving the work efficiency and management convenience, and reducing the labor intensity of the workers. Description of the Drawings

[0030] Figure 1 Schematic diagram of the mating structure of the railway yard component positioning device of the present utility model;

[0031] Figure 2 Schematic diagram of the structure of the positioning base station in the railway yard component positioning device of the present utility model;

[0032] Figure 3 Schematic diagram of the structure of the positioning terminal with an adjusting bolt in the railway yard component positioning device of the present utility model;

[0033] Figure 4 Schematic diagram of the structure of the positioning terminal with a magnetic attraction component in the railway yard component positioning device of the present utility model;

[0034] Figure 5 Schematic diagram of the electrical part structure in the railway yard component positioning device of the present utility model;

[0035] Figure 6 Schematic diagram of the example selection of the Bluetooth processor in the railway yard component positioning device of the present utility model;

[0036] Figure 7 Schematic diagram of the example selection of the inertial measurement unit in the railway yard component positioning device of the present utility model. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts fall within the scope of protection of the present invention.

[0038] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0039] Next, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention. Detailed implementation manner one

[0041] The railway yard component positioning device of this implementation manner includes at least one positioning base station 1 and at least one positioning terminal 2;

[0042] The positioning base station 1 includes a Bluetooth angle of arrival AOA unit 1-1, a support rod 1-2, a base 1-3, and a base station power supply 1-4;

[0043] The Bluetooth AOA unit 1-1 is fixed above the base 1-3 through the support rod 1-2;

[0044] The base 1-3 is provided with a base station power supply 1-4; the power input end of the Bluetooth AOA unit 1-1 is electrically connected to the base station power supply 1-4 through a power cord;

[0045] The positioning terminal 2 includes a terminal housing 2-1, a Bluetooth processor 2-2 and a terminal power supply 2-3 fixed in the terminal housing 2-1;

[0046] The radio frequency signal input and output end of the Bluetooth processor 2-2 is communicatively connected to the radio frequency signal input and output end of the Bluetooth AOA unit 1-1;

[0047] The power input end of the Bluetooth processor 2-2 is electrically connected to the power output end of the terminal power supply 2-3.

[0048] Specifically, the components of the railway yard in this embodiment are mainly parts such as vehicle frames and wheels stored in the railway yard. Since the railway yard covers a large area and there are many components, location information of the above components is required for work processes such as searching, inventorying, or registering.

[0049] Among them, as Figures 1 to 6 shown, the positioning base station 1 mainly utilizes the direction-finding function of the Bluetooth AOA (Angle of Arrival) unit 1-1. The Bluetooth AOA unit 1-1 can receive the radio frequency signal emitted by the Bluetooth processor 2-2 and measure the arrival angle of the signal by using an antenna array. Each antenna in the antenna array will receive the same radio frequency signal, and the azimuth angle and elevation angle are calculated by measuring the time difference or phase difference of the radio frequency signal arriving at each antenna. Then, signal processing algorithms such as MUSIC (Multiple Signal Classification) algorithm or DOA (Direction of Arrival) algorithm are used to calculate the azimuth of the corresponding positioning terminal 2. And a single positioning base station 1 can realize the presence detection or two-dimensional rough positioning of the positioning terminal 2, and the positioning area radius is 2 times the base station installation height. Two positioning base stations 1 can realize the two-dimensional precise positioning of the positioning terminal 2. Three or more positioning base stations 1 can realize the two-dimensional precise positioning of the positioning terminal 2 according to the triangulation algorithm.

[0050] Since many railway yards are open-air or have very high ceilings in factories. And the installation of the Bluetooth AOA unit 1-1 requires a certain height, so the Bluetooth AOA unit 1-1 can be supported to a certain height by a support rod 1-2 with a certain height. The support rod 1-2 can be a long rod with a fixed height or can be set as a telescopic rod. By adjusting the telescopic rod, the Bluetooth AOA units 1-1 in multiple adjacent positioning base stations 1 are located at different heights, and then methods such as triangulation can be used to determine the three-dimensional position of the positioning terminal 2.

[0051] The above-mentioned Bluetooth AOA unit 1-1 can adopt the AEWP001 Bluetooth AOA antenna module, and the Bluetooth processor 2-2 can adopt the nRF52832-QFAA processor. Specific Embodiment 2

[0053] This embodiment is a further description of Embodiment 1. In this embodiment, the positioning terminal 2 further includes an inertial measurement unit 2-4;

[0054] The attitude signal output end of the inertial measurement unit 2-4 is electrically connected to the attitude signal input end of the Bluetooth processor 2-2;

[0055] The standby power supply instruction output end and the power-on power supply instruction output end of the Bluetooth processor 2-2 are respectively electrically connected to the standby power supply instruction input end and the power-on power supply instruction input end of the terminal power supply 2-3.

[0056] Specifically, as Figure 7 shown, the inertial measurement unit 2-4 can adopt the BMI160 attitude sensor to measure the attitude of the positioning terminal 2.

[0057] When the positioning terminal 2 is fixed on a component, the Bluetooth processor 2-2 receives the attitude signal measured by the inertial measurement unit 2-4. If it is measured that the component remains stationary for a certain period of time, then the Bluetooth processor 2-2 sends a standby power supply instruction to the terminal power supply 2-3, and the terminal power supply 2-3 maintains a low-power output. When the attitude or position of the component changes, the inertial measurement unit 2-4 will detect the change and send an attitude signal or an interruption signal to the Bluetooth processor 2-2. At this time, the Bluetooth processor 2-2 will send a power-on power supply instruction to the terminal power supply 2-3 so that the terminal power supply 2-3 outputs at full power, enabling the Bluetooth processor 2-2 to have enough energy to send radio frequency signals and re-position. Specific Embodiment 3

[0059] This embodiment is a further description of Embodiment 1 or 2. In this embodiment, the positioning terminal 2 further includes at least one adjusting bolt 2-5 and an adjusting knob 2-6;

[0060] The terminal housing 2-1 is provided with a threaded hole that is threadedly matched with the adjusting bolt 2-5;

[0061] The adjustment knob 2-6 is coaxially fixed to the outer wall of the adjustment bolt 2-5, so that the adjustment knob 2-6 can drive the adjustment bolt 2-5 to rotate.

[0062] Specifically, as Figure 4 shown, for the fixing method of the positioning terminal 2, screw holes can be drilled in the component (or using pre-existing screw holes), and it can be fixed to the component by means of threaded fit with the adjustment bolt 2-5. By turning the adjustment knob 2-6, the adjustment bolt 2-5 can be screwed into the screw hole on the component. Specific Embodiment Four

[0064] This embodiment is a further description of Embodiment One or Two. In this embodiment, the positioning terminal 2 further includes a magnetic attraction component 2-7;

[0065] The magnetic attraction component 2-7 is fixed to the outer wall of the positioning terminal 2.

[0066] Specifically, as Figure 5 shown, since most components are made of steel or iron, the fixing method of the positioning terminal 2 can also adopt the magnetic attraction method, and it is adsorbed and fixed to the component through the magnetic attraction component 2-7, avoiding the operation of drilling holes in components without screw holes and reducing the damage to the components. Since the surface of the component may not be a flat surface, multiple dot-shaped magnetic attraction components 2-7 can be fixed on the positioning terminal 2, so that the positioning terminal 2 can have multiple scattered adsorption points and be adsorbed and fixed to the component as much as possible. Specific Embodiment Five

[0068] This embodiment is a further description of Embodiment Three. In this embodiment, the positioning terminal 2 further includes an electronic tag 2-8;

[0069] The electronic tag 2-8 is fixed inside the terminal housing 2-1.

[0070] Specifically, when the number of positioning base stations 1 is small, due to the influence of the number and signal quality of the positioning base stations 1, there may be a certain error range in the positioning of the components. Therefore, the positioning of the components can only be limited within a certain range. The positioning terminal 2 on the components within the determined range can be scanned by an RFID scanner gun to obtain the corresponding component information pre-written in the electronic tag 2-8, so as to accurately find the corresponding component.

[0071] At the same time, the electronic tag 2-8 can also be used for inventory warehousing of components, etc. Specific Embodiment Six

[0073] This embodiment is a further description of Embodiment One, Two or Five. In this embodiment, the positioning terminal 2 further includes an e-ink screen 2-9;

[0074] The terminal information display signal input end of the e-ink screen 2-9 is electrically connected to the terminal information display signal output end of the Bluetooth processor 2-2.

[0075] Specifically, a nameplate can also be provided outside the positioning terminal 2. The nameplate is used to mark information of components, such as numbers, etc. The nameplate in this embodiment can adopt the e-ink screen 2-9. The e-ink screen 2-9 only consumes electric energy when refreshing the screen content and does not consume power when displaying static content. Once the component is stored, its number will not be easily changed. Therefore, the e-ink screen 2-9 is completely suitable for application scenarios of long-term displaying of static content such as component numbers. If the positioning terminal 2 is reused, the display content can also be rewritten and refreshed. Specific Embodiment Seven

[0077] This embodiment is a further description of Embodiment One. In this embodiment, the positioning base station 1 further includes a plurality of moving wheels 1-5;

[0078] The plurality of moving wheels 1-5 are arranged below the base 1-3.

[0079] Specifically, setting the moving wheels 1-5 can facilitate the movement of the positioning base station 1, and can flexibly build and configure the positioning base station 1 network in different yard areas, reducing the waste of resources caused by the fixed setting of the positioning base station 1 and reducing the networking cost. Specific Embodiment Eight

[0081] This embodiment is a further description of Embodiment One or Seven. In this embodiment, there are three positioning base stations 1.

[0082] Specifically, three or more positioning base stations 1 can achieve two-dimensional precise positioning of the positioning terminal 2 according to the triangulation algorithm. If the Bluetooth AOA units 1-1 in multiple adjacent positioning base stations 1 are at different heights, triangulation and other methods can also be used to determine the three-dimensional position of the positioning terminal 2. Specific Embodiment Nine

[0084] This embodiment is a further description of Embodiment Eight. In this embodiment, a positioning information monitoring terminal 3 is further included;

[0085] The positioning information input end of the positioning information monitoring terminal 3 is electrically connected to the positioning information output end of the Bluetooth AOA unit 1-1.

[0086] Specifically, the positioning information monitoring terminal 3 can adopt a terminal equipped with an operating system, such as a computer with a screen, a smart device, etc. The positioning information monitoring terminal 3 and the Bluetooth AOA unit 1-1 communicate through a wired cable, WiFi, or a mobile network to obtain the positioning information of the Bluetooth AOA unit 1-1, so as to display the position of the component for the operator to view, track historical records, etc., and help the operator monitor and manage the position of the monitoring terminal 3.

[0087] Although the present invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not deviate from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features in this document can be combined in a manner different from that described in the original claims. It should also be understood that the features described in connection with a single embodiment can be used in other embodiments.

Claims

1. Railway yard component positioning device, characterized in that: It comprises at least one positioning base station (1) and at least one positioning terminal (2); The positioning base station (1) comprises a Bluetooth AOA unit (1-1), a support rod (1-2), a base (1-3) and a base station power supply (1-4); The Bluetooth AOA unit (1-1) is fixed above the base (1-3) via the support rod (1-2); A base station power supply (1-4) is provided in the base (1-3); a power input end of the Bluetooth AOA unit (1-1) is electrically connected to the base station power supply (1-4) via a power line; The positioning terminal (2) comprises a terminal housing (2-1), a Bluetooth processor (2-2) and a terminal power supply (2-3) fixed in the terminal housing (2-1); The radio frequency signal input and output end of the Bluetooth processor (2-2) is communicatively connected with the radio frequency signal input and output end of the Bluetooth AOA unit (1-1); The power input end of the Bluetooth processor (2-2) is electrically connected to the power output end of the terminal power supply (2-3).

2. The railway yard component positioning device according to claim 1, characterized in that: The positioning terminal (2) also includes an inertial measurement unit (2-4); The attitude signal output terminal of the inertial measurement unit (2-4) is electrically connected to the attitude signal input terminal of the Bluetooth processor (2-2); The standby power supply instruction output terminal and the power supply instruction output terminal of the Bluetooth processor (2-2) are electrically connected to the standby power supply instruction input terminal and the power supply instruction input terminal of the terminal power supply (2-3) respectively.

3. The railway yard component positioning device according to claim 1 or 2, characterized in that: The positioning terminal (2) also includes at least one adjusting bolt (2-5) and an adjusting knob (2-6); The terminal housing (2-1) is provided with a screw hole that matches the thread of the adjusting bolt (2-5); The adjusting knob (2-6) is coaxially fixed to the outer side wall of the adjusting bolt (2-5), so that the adjusting knob (2-6) can drive the adjusting bolt (2-5) to rotate.

4. The railway yard component positioning device according to claim 1 or 2, characterized in that: The positioning terminal (2) also includes a magnetic attraction component (2-7); The magnetic attraction component (2-7) is fixed on the outer side wall of the positioning terminal (2).

5. The railway yard component positioning device according to claim 3, characterized in that: The positioning terminal (2) also includes an electronic tag (2-8); The electronic tag (2-8) is fixed in the terminal housing (2-1).

6. The railway yard component positioning device according to claim 1, 2 or 5, characterized in that: The positioning terminal (2) also includes an ink screen (2-9); The terminal information display signal input end of the ink screen (2-9) is electrically connected to the terminal information display signal output end of the Bluetooth processor (2-2).

7. The railway yard component positioning device according to claim 1, characterized in that: The positioning base station (1) also includes a plurality of moving wheels (1-5); The plurality of moving wheels (1-5) are arranged below the base (1-3).

8. The railway yard component positioning device according to claim 1 or 7, characterized in that: There are three positioning base stations (1).

9. The railway yard component positioning device according to claim 8, characterized in that: Also includes a positioning information monitoring terminal (3); The positioning information input end of the positioning information monitoring terminal (3) is electrically connected to the positioning information output end of the Bluetooth AOA unit (1-1).

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