CN210323843U

CN210323843U - Mining sensor with emergency stop and deviation functions

Info

Publication number: CN210323843U
Application number: CN201921620165.3U
Authority: CN
Inventors: 杨斐斐; 周伦; 刘宇翔
Original assignee: Huainan Qidi Electronics Co ltd
Current assignee: Huainan Qidi Electronics Co ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-04-14
Anticipated expiration: 2029-09-26

Abstract

A mining sensor with emergency stop and deviation functions can solve the technical problems of single function, complex wiring and troublesome maintenance of the existing related sensors. The central processing module is connected with the belt transportation monitoring substation through the CAN bus communication module; the deviation emergency stop alignment coding module is connected with the central processing module through a general IO port, and address signals of deviation and emergency stop are transmitted to the central processing module through an 8-bit dial switch; the deviation and sudden stop input identification module is connected with the central processing module, judges deviation and sudden stop input through a power supply loading circuit and optical coupler input, and sends address coding data sent by the deviation and sudden stop alignment coding module to the bus communication module; the circuit further comprises an intrinsic safety power supply module which supplies power to each stage of circuit respectively. The sensor is matched with a transportation monitoring substation for use, data are transmitted through a CAN bus, the maximum data CAN reach 10KM, and the running state and the deviation fault position of a belt CAN be effectively transmitted to the transportation monitoring substation.

Description

Mining sensor with emergency stop and deviation functions

Technical Field

The utility model relates to a sensor technical field, concretely relates to mining sensor that possesses scram and off tracking function.

Background

The mining equipment takes a belt conveyor, a scraper conveyor, a winch and the like as control objects, various equipment is provided with different sensors for tension, slippage, smog, deviation, coal piling, temperature, vibration, sudden stop and the like, and the real-time monitoring of the operation condition of the equipment is realized.

As the length of the transportation belt is long, the length of the large belt reaches 2 kilometers, dozens of deviation and emergency stop sensors are arranged along the line, and the safe operation of the transportation belt is ensured.

The conventional deviation and emergency stop sensors generally adopt common trunk nodes to give signals to a host, and are very complex in wiring mode in the face of dozens of deviation and emergency stop sensors, and after the sensors act, the sensors need to be checked one by one to determine the action positions of the sensors, so that trouble is brought to equipment maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model provides a mining sensor that possesses scram and off tracking function can solve current relevant sensor function singleness, when installation quantity is more as required, and the wiring is complicated, overhauls troublesome technical problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a mining sensor with emergency stop and deviation functions comprises:

the system comprises a central processing module, a monitoring control sub-station and a monitoring control sub-station, wherein the central processing module is connected with the belt transportation monitoring sub-station through a CAN bus communication module;

the deviation scram alignment coding module and the deviation scram input identification module are also included;

the deviation emergency stop alignment coding module is connected with the central processing module through a general IO port, and address signals of deviation and emergency stop are transmitted to the central processing module through an 8-bit dial switch;

the deviation emergency stop input recognition module is connected with the central processing module, judges deviation and emergency stop input through a power supply loading circuit and optical coupler input, and sends address coding data sent by the deviation emergency stop alignment coding module to the bus communication module;

the CAN bus communication module is connected with the central processing module through a CAN bus communication port, the bus communication module and a CAN bus manager in the central processing module jointly form a CAN transceiving circuit, and an emergency stop or deviation signal acquired by the central processing module and address coding data are transmitted to the control host through different CAN bus ID codes;

the circuit further comprises an intrinsic safety power supply module which supplies power to each stage of circuit respectively.

According to the above technical scheme, the utility model discloses a mining sensor that possesses scram and off tracking function's beneficial effect as follows:

the novel LPC2119 processor with high cost performance is used as a main control core, the performance is high, and a peripheral circuit is simple and reliable.

In the CAN communication bus technology, hundreds of sensors CAN be installed on one bus.

The CAN bus CAN transmit 10 kilometers at most.

The multifunctional design of the deviation and the emergency stop is integrated, the functions of the processor are effectively exerted, the field wiring is simpler, and the maintenance is more convenient.

The address coding can conveniently realize the fault point to position display, and is beneficial to the inquiry and maintenance of the equipment fault point.

The first-stage deviation input mode and the second-stage deviation input mode of the sensor can realize the functions of first-stage deviation action alarm and second-stage deviation fault shutdown locking.

The coal mine safety production requirement is ensured.

Drawings

Fig. 1 is a block diagram of the present invention;

FIG. 2 is a circuit diagram of the CPU of the present invention;

FIG. 3 is a circuit diagram of the off-tracking sudden stop alignment coding module of the present invention;

FIG. 4 is a circuit wiring diagram of the deviation scram input recognition module of the present invention;

fig. 5 is a circuit wiring diagram of the CAN bus communication module of the present invention;

fig. 6 is a circuit diagram of the intrinsically safe power module of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

As shown in fig. 1, the sensor with emergency stop and deviation functions for mining according to this embodiment includes:

the sensor with the intelligent functions of the mining emergency stop and the deviation consists of a central processing module 1, a deviation emergency stop alignment coding module 2, a deviation emergency stop input identification module 3, a CAN bus communication module 4 and an intrinsic safety power module 5. The central processing module 1 takes a high-cost-performance processor LPC2119 as a main control core, and the central processing module 1 is connected with the deviation emergency stop contraposition coding module 2, the deviation emergency stop input identification module 3 and the bus communication module 4 through a multifunctional IO port.

The central processing module 1 takes a high-cost LPC2119 processor as a main control core, and the processor is provided with a plurality of interface modes such as a double-path CAN bus, a multi-path SPI interface, a double-path asynchronous communication interface UART, a double-path I2C interface and the like.

The deviation and sudden stop alignment coding module 2 is connected with the central processing module 1 through a general IO port, and address signals of deviation and sudden stop are transmitted to the central processing module 1 through an 8-bit dial switch.

The deviation and sudden stop input identification module 3 is connected with the central processing module 1, judges deviation and sudden stop input through a power supply loading circuit and optical coupler input, and then sends address coding data sent by the deviation and sudden stop contraposition coding module 2 to the bus communication module 4

The CAN bus communication module 4 is connected with the central processing module 1 through a CAN bus communication port, the bus communication module 4 mainly comprises a chip 82C250, and the chip and a CAN bus manager in the central processing module 1 jointly form a CAN receiving and transmitting circuit, and the CAN receiving and transmitting circuit transmits an emergency stop or deviation signal and address coding data which are collected by the central processing module 1 to a control host through different CAN bus ID codes.

The intrinsic safety power supply module 5 is composed of a switching power supply chip MC34063, a capacitor, an inductor, a chip SP1117-3.3, a chip SP1117-1.8 and the like to form a high-efficiency miniature voltage reduction circuit, reduces a 12V power supply to different voltages such as 5V, 3.3V, 1.8V and the like, and supplies power to circuits at all levels.

Fig. 3 shows a relevant line in which the position number of the sensor is preset, and the setting of the position location of the device is completed by field personnel using different dialing modes of S1, which not only reduces the complexity of field debugging, but also reduces the operation difficulty of maintenance personnel in a certain aspect.

Fig. 4 shows the acquisition of external signals in the line, and when the sudden stop of the CON2 or the short circuit of the first-level deviation input terminal is closed, the sensor normally starts to supply power and sends corresponding data to the CAN bus. The working mode not only reduces the standby power consumption of the equipment in a fault-free state, but also reduces the unstable working condition of the CPU caused by voltage drop caused by line voltage fluctuation or line loss. The deviation signal is isolated by adopting a PC357 photoelectric coupler, so that signal conversion between external voltage and the working voltage grade of the CPU is realized, direct connection between the CPU and external electrical equipment is isolated from hardware, and the deviation signal is suitable for and meets the requirements of more complex working condition environments.

Fig. 5 shows the conversion and regulation of the external supply voltage in the line. D1 is used as an external voltage reverse connection prevention protection measure to avoid the danger of burning the load chip when the positive and negative poles of the external voltage of the equipment are reversely connected; 1L1 plays a role in external input voltage filtering except necessary AC harmonic waves and provides a stable and pure DC voltage signal; the 1D2 is used as an overvoltage protection device, the reverse breakdown voltage is 40VDC at most, and after the U4 is damaged and broken down, a non-modulation direct current voltage signal is sent to the ground through the reverse breakdown of the 1D2, so that the damage of subsequent equipment is avoided. The L1 inductor can filter high-frequency signals generated when the U4 works to a certain degree, and the influence of a power supply on the work of a CPU is reduced. R4 and R5 are used as output voltage sampling lines, sampled voltage output signals are fed back to U4, and the output frequency of U4 is adjusted according to voltage values.

The principle of the utility model

The novel high-cost LPC2119 processor is used as a main control core, and a CAN bus communication bus technology and a deviation and emergency stop sensor integrated design technology are adopted, so that the device has the characteristics of simple peripheral circuit, high reliability, timely alignment display of fault points, convenience in installation and the like;

and the processor IO port receives and identifies belt deviation and emergency stop signals through the optical coupler, and after the processor receives the signals, the processor combines data transmitted by the address dial codes together and uploads the data through the CAN bus through different ID codes.

The sensor is matched with a transportation monitoring substation for use, data are transmitted through a CAN bus, the maximum data CAN reach 10KM, and the running state and the deviation fault position of a belt CAN be effectively transmitted to the transportation monitoring substation. When emergency parking is needed, any emergency stop button acts, and emergency stop and position data are transmitted to the host computer in real time, so that fault locking and alignment display of the equipment are realized.

In the embodiment, a novel high-cost LPC2119 processor is used as a main control core, and a CAN bus communication bus technology and a deviation and emergency stop sensor integrated design technology are adopted, so that the device has the characteristics of simple peripheral circuit, high reliability, timely alignment display of fault points, convenience in installation and the like; the device is matched with a transportation monitoring substation for use, data are transmitted through the CAN bus, the maximum data CAN reach 10KM, and the running state and the deviation fault position of the belt CAN be effectively transmitted to the transportation monitoring substation. When emergency parking is needed, any emergency stop button acts, and emergency stop and position data are transmitted to the host computer in real time, so that fault locking and alignment display of the equipment are realized.

The sensor with the mining emergency stop and deviation intelligent function can be widely applied to coal mines.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A mining sensor with emergency stop and deviation functions comprises a central processing module (1), wherein the central processing module (1) is connected with a belt transportation monitoring substation through a CAN bus communication module (4); the method is characterized in that:

the device also comprises a deviation scram alignment coding module (2) and a deviation scram input identification module (3);

the deviation sudden stop alignment coding module (2) is connected with the central processing module (1) through a general IO port, and address signals of deviation and sudden stop are transmitted to the central processing module (1) through an 8-bit dial switch;

the deviation emergency stop input recognition module (3) is connected with the central processing module (1), and judges deviation and emergency stop input through a power supply loading circuit and optical coupler input, and then sends address coding data sent by the deviation emergency stop alignment coding module (2) to the bus communication module (4) together;

the CAN bus communication module (4) is connected with the central processing module (1) through a CAN bus communication port, the bus communication module (4) and a CAN bus manager in the central processing module (1) jointly form a CAN transceiving circuit, and an emergency stop or deviation signal acquired by the central processing module (1) and address coding data are transmitted to the control host through different CAN bus ID codes;

the circuit further comprises an intrinsic safety power supply module (5), and the intrinsic safety power supply module (5) supplies power to each stage of circuit respectively.

2. The mining sensor with the emergency stop and deviation functions according to claim 1, characterized in that: the central processing module (1) adopts an LPC2119 processor.