An uninterruptible power supply coal mining machine trajectory measurement system

Abstract

The present invention relates to, but is not limited to, the field of inertial navigation precision measurement technology, and specifically to an uninterruptible power supply coal mining machine trajectory measurement system. It includes a fiber optic inertial navigation module 100, an uninterruptible power supply management module 200, an embedded computer 300, a battery module 400, and an adjustable discharge time module 500; an external power supply is connected to the input end of the uninterruptible power supply management module 200, and the output end of the uninterruptible power supply management module 200 is divided into two paths, one path is electrically connected to the embedded computer 300, and the other path is electrically connected to the battery module 400, and the battery module 400 is electrically connected to the embedded computer 300 through the adjustable discharge time module 500; the embedded computer 300 and the fiber optic inertial navigation module 100 are communicatively connected. The system can ensure the normal operation of the inertial navigation system during power supply abnormalities, and can work immediately when the power supply is normal, avoiding the waiting time required for re-powering.

Description

Technical Field

[0001] The invention relates to, but is not limited to, the technical field of inertial navigation precision measurement, and in particular to an uninterruptible power supply coal mining machine trajectory measurement system. Background Art

[0002] In the field of coal mining, in order to improve the efficiency of coal mining, my country is currently vigorously improving the intelligence of coal mining machines. The most important of these is to install an inertial navigation system on the coal mining machine to achieve real-time measurement of the coal mining machine's operating posture and trajectory, and provide the measurement data to the coal mining machine for use.

[0003] The inertial navigation system installed on the coal mining machine is a high-precision measurement device. Before each mining operation, the coal mining machine must first power on the inertial navigation system to enter the initialization work preparation. After the preparation is completed, the coal mining machine can start mining. Due to the harsh working environment of the coal mining machine, the coal mining machine often needs to be shut down and powered off for maintenance. Each maintenance requires all equipment to be powered off. After the maintenance is completed, the inertial navigation system is powered on again for work preparation. The preparation time varies from about 10 to 30 minutes, which seriously affects the efficiency of coal mining.

[0004] At the same time, due to the large number of coal mining machine models, the types of information communication of coal mining machines are diverse, and the ordinary inertial navigation products are not expandable enough to meet the actual needs. At the same time, the power supply of coal mining machine equipment is high-power high-voltage signal, which is easily interfered by high-voltage signals, causing damage to the communication chip and affecting communication.

[0005] To address this problem, an integrated coal mining machine operation trajectory system based on a fiber-optic inertial navigation system was designed to ensure the normal operation of the inertial navigation system during abnormal power supply to the coal mining machine equipment, and to ensure that the system can work immediately when the power supply is normal, thus avoiding the waiting time required for re-powering on. At the same time, a separate communication interface module was designed to meet the communication interface requirements of various types of existing coal mining machines, thereby improving communication reliability, reducing the number of system components, and reducing the difficulty of on-site installation and maintenance. Summary of the invention

[0006] The purpose of the present invention is to utilize the integrated design concept of inertial navigation system + uninterruptible power supply + special task computer + communication interface module to achieve full compatibility of the system with various types of coal mining machines and the uninterruptible power supply function of the system.

[0007] The technical solution of the present invention:

[0008] The embodiment of the present invention provides an uninterruptible power supply coal mining machine trajectory measurement system, which is characterized by comprising a fiber optic inertial navigation module 100; an uninterruptible power supply management module 200; an embedded computer 300; a battery module 400; an adjustable discharge time module 500, and a communication interface module 600.

[0009] The external power supply is input to the uninterruptible power supply management module 200, and the uninterruptible power supply management module 200 can filter and surge suppress the power supply input; the uninterruptible power supply management module 200 determines whether the external power supply is connected. If it is connected, the output of the uninterruptible power supply management module 200 is divided into two paths, one of which is input to the embedded computer 300, and the embedded computer 300 outputs power to the fiber optic inertial navigation module 100; the other path is input to the battery module 400 for charging the battery module.

[0010] The above power supply process is all powered by the embedded computer to the fiber optic inertial navigation module to ensure power supply reliability;

[0011] If the external power supply is disconnected, the battery module 400 outputs power to the embedded computer 300 through the adjustable discharge time module 500 .

[0012] In a possible embodiment, the embedded computer 300 first delays for 3-10 seconds, and then outputs power to the fiber optic inertial navigation module 100 after secondary filtering.

[0013] In a possible embodiment, the adjustable discharge time module 500 includes a dial switch and an I / O signal reading circuit; the dial switch is connected to the embedded computer 300, and the I / O circuit reading circuit reads the dial switch electrical signal and sends it to the embedded computer 300.

[0014] Preferably, the number of digits of the dial switch is 4-8 digits.

[0015] In a possible embodiment, when the battery module 400 supplies power to the embedded computer 300 through the adjustable discharge time module 500, the embedded computer 300 reads the band switch value in the adjustable discharge time module 500 to control the discharge time. When the maximum time is reached, the embedded computer 300 cuts off the output of the adjustable discharge time module 500.

[0016] In a possible embodiment, the uninterruptible power supply coal mining machine trajectory measurement system further includes an integrated communication interface module 600, the input end of the integrated communication interface module 600 is communicatively connected to the output end of the embedded computer 300, and the output end of the integrated communication interface module 600 is communicatively connected to the coal mining machine; the integrated communication interface module 600 integrates at least two or more types of interfaces among RS232, RS422, RS485, CAN2.0, CAN OPEN2.0, Ethernet, and optical fiber. Through this measure, full compatibility with more than 95% of the current coal mining machine interfaces is achieved.

[0017] In a possible embodiment, the integrated communication interface modules 600 are all provided with optical coupling isolation modules, which can physically isolate the damage to the interface module caused by high voltage and peak signals that may be brought about in the communication line of the coal mining machine.

[0018] In a possible embodiment, the battery module 400 may use industrial standard 18650 batteries.

[0019] Advantages of the invention: The invention belongs to the precision measurement technology in the field of inertial navigation. By integrating the fiber optic inertial navigation system + uninterruptible power supply + special task computer + communication interface module, it realizes full compatibility with the communication of various types of coal mining machines and uninterruptible power supply of the system. Through the above measures, the efficiency of coal mining can be greatly improved.

[0020] At the same time, the uninterrupted power supply time can be adjusted according to needs; the power supply protection for the inertial navigation system is strengthened through the delayed power supply design of the embedded computer and the secondary filtering circuit; the external communication interface module is designed with an optocoupler isolation module to ensure the long-term working reliability of the communication interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of an uninterruptible power supply coal mining machine trajectory measurement system of the present invention. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, an uninterruptible power supply coal mining machine trajectory measurement system is characterized by including a fiber optic inertial navigation module 100; an uninterruptible power supply management module 200; an embedded computer 300; a battery module 400; an adjustable discharge time module 500, and a communication interface module 600.

[0024] The external power supply is input to the uninterruptible power supply management module 200, and the uninterruptible power supply management module 200 can filter and surge suppress the power supply input; the uninterruptible power supply management module 200 determines whether the external power supply is connected. If it is connected, the output of the uninterruptible power supply management module 200 is divided into two paths, one of which is input to the embedded computer 300, and the embedded computer 300 outputs power to the fiber optic inertial navigation module 100; the other path is input to the battery module 400 for charging the battery module.

[0025] The above power supply process is all powered by the embedded computer to the fiber optic inertial navigation module to ensure power supply reliability;

[0026] If the external power supply is disconnected, the battery module 400 outputs power to the embedded computer 300 through the adjustable discharge time module 500 .

[0027] The embedded computer 300 first delays for 6 seconds, and then outputs power to the fiber optic inertial navigation module 100 after secondary filtering.

[0028] The number of band switches of the adjustable discharge time module 500 is 4.

[0029] The uninterruptible power supply coal mining machine trajectory measurement system also includes an integrated communication interface module 600, the input end of the integrated communication interface module 600 is communicatively connected to the output end of the embedded computer 300, and the output end of the integrated communication interface module 600 is communicatively connected to the coal mining machine; the integrated communication interface module 600 includes two communication interfaces: CAN2.0 and Ethernet.

[0030] The communication interface modules 600 are all provided with an optical coupling isolation module.

[0031] The battery module 400 uses six industrial standard 18650 batteries connected in series. The battery module can provide a maximum power supply time of 80 minutes. The embedded computer 300 can adjust the power supply time in steps through a time timing program, with a step interval of 5 minutes.

Claims

1. An uninterruptible power supply coal mining machine trajectory measurement system, characterized in that: The invention comprises a fiber optic inertial navigation module (100), an uninterruptible power supply management module (200), an embedded computer (300), a battery module (400), and an adjustable discharge time module (500); an external power supply is connected to an input end of the uninterruptible power supply management module (200); an output end of the uninterruptible power supply management module (200) is divided into two paths, one path is electrically connected to the embedded computer (300), and the other path is electrically connected to the battery module (400); the battery module (400) is electrically connected to the embedded computer (300) via the adjustable discharge time module (500); the embedded computer (300) and the fiber optic inertial navigation module (100) can communicate with each other through the fiber optic inertial navigation module (100); After the external power supply is input into the uninterruptible power supply management module (200), the uninterruptible power supply management module (200) determines whether the external power supply is connected; if it is connected, the output of the uninterruptible power supply management module (200) is divided into two paths, one of which is input into the embedded computer (300), and the embedded computer (300) outputs power to the optical fiber inertial navigation module (100); the other is input into the battery module (400) for charging the battery module; if the external power supply is disconnected, the battery module (400) outputs power to the embedded computer (300) through the adjustable discharge time module (500).

2. The uninterruptible power supply coal mining machine trajectory measurement system according to claim 1 is characterized in that: The embedded computer (300) first delays for 6 to 10 seconds and then outputs power to the optical fiber inertial navigation module (100) after secondary filtering.

3. The uninterruptible power supply coal mining machine trajectory measurement system according to claim 1, characterized in that: The adjustable discharge time module (500) comprises a dial switch and an I / O signal reading circuit; the dial switch is connected to the embedded computer (300), and the I / O signal reading circuit reads the dial switch electrical signal and sends it to the embedded computer (300).

4. The uninterruptible power supply coal mining machine trajectory measurement system according to claim 3, characterized in that: When the battery module (400) supplies power to the embedded computer (300) through the adjustable discharge time module (500), the embedded computer (300) reads the band switch value in the adjustable discharge time module (500) to control the discharge time, and when the maximum time is reached, the embedded computer (300) cuts off the output of the adjustable discharge time module (500).

5. The uninterruptible power supply coal mining machine trajectory measurement system according to claim 1, characterized in that: The uninterruptible power supply coal mining machine trajectory measurement system also includes an integrated communication interface module (600), the input end of the integrated communication interface module (600) is communicatively connected to the output end of the embedded computer (300), and the output end of the integrated communication interface module (600) is communicatively connected to the coal mining machine; the integrated communication interface module (600) integrates at least two or more types of interfaces among RS232, RS422, RS485, CAN2.0, CAN OPEN2.0, Ethernet, and optical fiber.

6. The uninterruptible power supply coal mining machine trajectory measurement system according to claim 5, characterized in that: The integrated communication interface modules (600) are all provided with an optical coupling isolation module.

7. The uninterruptible power supply coal mining machine trajectory measurement system according to claim 1, characterized in that: The battery module (400) uses 18650 batteries.

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