阅读说明：本技术 一种火车制动气缸压力监测采集系统 (Train brake cylinder pressure monitoring and collecting system ) 是由 孔维亭 何宇峰 曾强 于 2020-05-12 设计创作，主要内容包括：本发明公开了一种火车制动气缸压力监测采集系统,其特征在于,包括气缸压力传感器、气缸温度探测器、压力及温度电信号生成器、内部算法补偿器、高速数据通讯处理器、超高频RFID数据处理器、无线充能及储能器、超高频通讯天线、无线ID采集器；本发明的有益效果在于：一、首先采用对制动气缸气压的实时监测；二、不需要人员经验判断；三、数据以经过采集点的车厢顺序进行采集；四、高速、高可靠性、超低功耗、工作寿命10年以上；五、传感器采集精度高、高速感知及响应,即使火车时速大于160千米时速也可有效传送能量及数据；六、稳定高低温、高防水、高抗震、抗干扰；七、特殊放大能量广角储存单元；八、可嵌入铁路内网,进行智能管理。(The invention discloses a train brake cylinder pressure monitoring and collecting system which is characterized by comprising a cylinder pressure sensor, a cylinder temperature detector, a pressure and temperature electric signal generator, an internal algorithm compensator, a high-speed data communication processor, an ultrahigh frequency RFID data processor, a wireless energy charging and storing device, an ultrahigh frequency communication antenna and a wireless ID collector, wherein the cylinder pressure sensor is connected with the cylinder temperature detector; the invention has the beneficial effects that: firstly, monitoring the air pressure of a brake cylinder in real time; secondly, the judgment of personnel experience is not needed; thirdly, collecting data in the sequence of the carriages passing through the collection points; fourthly, high speed, high reliability, ultra-low power consumption and more than 10 years of service life are achieved; fifthly, the sensor has high acquisition precision and high-speed sensing and responding, and can effectively transmit energy and data even if the speed per hour of the train is more than 160 kilometers; sixthly, high and low temperature stability, high water resistance, high earthquake resistance and interference resistance are achieved; seventhly, a special wide-angle energy amplifying storage unit; eighthly, the intelligent management system can be embedded into a railway intranet for intelligent management.)

1. A train brake cylinder pressure monitoring and collecting system is characterized by comprising a cylinder pressure sensor (1), a cylinder temperature detector (2), a pressure and temperature electric signal generator (3), an internal algorithm compensator (4), a high-speed data communication processor (5), an ultrahigh frequency RFID data processor (6), a wireless energy charging and storing device (7), an ultrahigh frequency communication antenna (8) and a wireless ID collector (9); the cylinder pressure sensor (1) and the cylinder temperature detector (2) are connected with a pressure and temperature electric signal generator (3); the pressure and temperature electric signal generator (3) is connected with an internal operation compensator (4); the internal operation compensator (4) and the high-speed data communication processor (5) are connected with the ultrahigh RFID data frequency communication processor (6); the ultrahigh RFID data frequency communication processor (6) is connected with a wireless energy charging and storing device (7); the wireless energy charging and storing device (7) is connected with the ultrahigh communication antenna (8).

2. The train brake cylinder pressure monitoring and collecting system according to claim 1, wherein the cylinder pressure sensor (1) is used for being installed in a brake cylinder of a brake device of each carriage of a train, sensing pressure data of the brake cylinder of each carriage of the train and sending the pressure data to the pressure and temperature electric signal generator (3); the cylinder temperature detector (2) is arranged on a brake cylinder of a brake device of each carriage of the train, senses temperature data of the brake cylinder of each carriage of the train, and sends the temperature data to the pressure and temperature electric signal generator (3).

3. The train brake cylinder pressure monitoring acquisition system according to claim 2, characterized in that the pressure and temperature electrical signal generator (3) converts pressure data of the cylinder pressure sensor (1) and temperature data of the cylinder temperature detector (2) into electrical signals.

4. A train brake cylinder pressure monitoring acquisition system according to claim 3, characterized in that the internal algorithmic compensator (4) is adapted to generate the electrical signals generated by the electrical pressure and temperature signal generator (3) into signal data corresponding to 3.2Bar pressure.

5. The train brake cylinder pressure monitoring and collecting system according to claim 4, wherein the high speed data communication processor (5) is configured to perform high speed data compression encryption communication processing on the signal data corresponding to the 3.2Bar pressure generated by the internal algorithm compensator (4), and allocate ID numbers to the signals, and the ID numbers allocated to different train cars are different.

6. The train brake cylinder pressure monitoring and collecting system according to claim 5, wherein the UHF RFID data processor (6) is used for performing RFID data processing on the data processed by the high-speed data communication processor (5).

7. The train brake cylinder pressure monitoring and collecting system according to claim 6, wherein the wireless energy charging and storing device (7) is used for charging and storing the data processed by the UHF RFID data processor (6) through the wireless energy charging and storing device (7).

8. The train brake cylinder pressure monitoring and collecting system according to claim 7, characterized in that the UHF communication antenna (8) is used for wirelessly transmitting the signal passing through the wireless energy charging and storing device (7) to the wireless ID collector (9).

9. The train brake cylinder pressure monitoring and collecting system as claimed in claim 7, wherein the wireless ID collectors (9) are installed near train rails and every 30 km, and are used for collecting wireless signals with ID transmitted by the UHF communication antenna (8) of each train carriage and sending pressure values of the ID signals to a railway management system through RS232 lines or Ethernet.

10. The system of claim 8, wherein the railway management system sets the pressure value to five steps, that is, when the pressure value is greater than or equal to 3Bar, the pressure value is a first low pressure, when the pressure value is greater than 3Bar, and the pressure value is less than 4Bar, the pressure value is a second medium pressure, when the pressure value is greater than or equal to 4Bar, and the pressure value is less than or equal to 5Bar, the pressure value is a third normal pressure, when the pressure value is greater than 5Bar, the pressure value is a fourth high pressure, and when the pressure value is greater than 7Bar, the pressure value is a fifth ultrahigh pressure, and the pressure value is a. A loadable temperature sensor detects the cylinder external temperature.

Technical Field

The invention relates to the technical field of train brake cylinder pressure acquisition, in particular to a train brake cylinder pressure monitoring and acquiring system.

Background

The train running at high speed can be quickly stopped by air brake. The air brake equipment is installed partly on the locomotive and partly under each carriage of the train. A set of complete brake device is arranged under each carriage of the train, and the working principle of the brake device is as follows: when the driver operates the brake valve to charge the brake air cylinder of the brake device of each carriage, the compressed air is charged into the brake air cylinder of the brake device of each carriage of the train through the charging pipe. When a driver operates the brake valve to brake, compressed air in the brake air cylinder is exhausted, air pressure is converted into non-mechanical force, the brake shoe is pressed tightly, and therefore a braking effect is generated on the wheel which runs at a high speed. No matter how many train carriages the locomotive pulls, a driver can control the running of the whole train, so that the train can be stopped quickly.

The train brake uses air as brake motive force to change the pressure of air to control. The larger the braking force is, the more sensitive and convenient the control of the braking force is. The railway habit in China is to simply use pressure air as wind and air brakes as air brakes. The air cylinder is called as an air cylinder, so that the air pressure intensity in the braking air cylinder determines the sensitivity and the action of the braking device; the specific braking device adopts an electric control motor to supply air pressure in a braking cylinder as shown in figure 5.

Artificially slowing a train or stopping a train within a specified distance is called "braking", whereas releasing or weakening the braking action of an already applied train is called "relieving". Train brakes can be classified in terms of their operation into "service brakes" and "emergency brakes" depending on the application. The brake normally applied to regulate or control train speed, including inbound and stop, is referred to as "service brake" and is characterized by a relatively mild effect and an adjustable braking force. The braking applied in an emergency to bring the train to a stop as quickly as possible is called "emergency braking" or "extraordinary braking" and is characterized by a relatively rapid action and by the fact that the braking capacity of the train is fully utilized.

The distance the train travels from the instant the brake is applied to the instant the train speed drops to zero is called the braking distance. The higher the weight of the train, the higher the running speed, and the less likely it is to stop in a short time, short distance. If a train consisting of 15 carriages runs at a speed of 50 km, the train can stop within 130 m after braking; when the speed of the train is increased to 70 km, the train can be stopped only by driving 250 meters forwards; when the speed of the train reaches 100 kilometers per hour, the braking distance is 570 meters; and when the train speed is up to 120 kilometers, the braking distance is more than 800 meters. It can be seen that the speed of the train is doubled and the braking distance is increased by more than three times. However, the current "railway technical management regulations" in China stipulate that the emergency braking distance of a train on any railway slope is 800 meters.

At present, train brakes for railway transportation in China and the world are air brakes; when the train freight is subjected to severe environment and weather in the long-distance transportation process of loading, whether the air pressure of the brake cylinder of each carriage of the train can effectively play an emergency braking role or not is judged, and the requirement on the air pressure of the brake cylinder is very high; however, the prior art can not effectively identify the air pressure of the brake cylinder of each carriage of the train, and if the pressure of the brake cylinder is not enough in a severe environment, the train can not brake within a specified braking distance, which can cause serious loss and accidents.

Disclosure of Invention

The invention mainly solves the technical problem of providing a train brake cylinder pressure monitoring and collecting system, which firstly adopts real-time monitoring of the air pressure of a brake cylinder to enable a train driver to know the pressure value of the brake cylinder of each carriage in advance, and when a train needs emergency braking, corresponding enough cylinder pressure can be adopted for emergency braking according to the cylinder pressure value of each train carriage.

In order to solve the problems, the invention provides a train brake cylinder pressure monitoring and collecting system which comprises a cylinder pressure sensor, a cylinder temperature detector, a pressure and temperature electric signal generator, an internal algorithm compensator, a high-speed data communication processor, an ultrahigh frequency RFID data processor, a wireless energy charging and storing device, an ultrahigh frequency communication antenna and a wireless ID collector, wherein the cylinder pressure sensor is connected with the cylinder temperature detector; the cylinder pressure sensor and the cylinder temperature detector are connected with a pressure and temperature electric signal generator; the pressure and temperature electric signal generator is connected with the internal operation compensator; the internal operation compensator and the high-speed data communication processor are connected with the ultrahigh RFID data frequency communication processor; the ultrahigh RFID data frequency communication processor is connected with a wireless energy charging and storing device; the wireless energy charging and storing device is connected with the ultrahigh communication antenna.

Further, the cylinder pressure sensor is arranged in a brake cylinder of a brake device of each carriage of the train, senses pressure data of the brake cylinder of each carriage of the train and sends the pressure data to the pressure and temperature electric signal generator; the cylinder temperature detector is used for being arranged on a brake cylinder of a brake device of each carriage of the train, sensing temperature data of the brake cylinder of each carriage of the train and sending the temperature data to the pressure and temperature electric signal generator.

Further, the pressure and temperature electrical signal generator converts pressure data of the cylinder pressure sensor and temperature data of the cylinder temperature detector into electrical signals.

Further, the internal algorithmic compensator is configured to generate the electrical signal generated by the electrical pressure and temperature signal generator into signal data corresponding to a pressure of 3.2 Bar.

Furthermore, the high-speed data communication processor is used for carrying out high-speed data compression encryption communication processing on the signal data which is generated by the internal algorithm compensator and corresponds to the pressure of 3.2Bar, and allocating ID numbers to the signals, wherein the IDs allocated to different railway carriages are different.

Furthermore, the ultrahigh frequency RFID data processor is used for processing the data processed by the high-speed data communication processor and then performing RFID data processing.

Furthermore, the wireless energy charging and storing device is used for charging and storing the data processed by the ultrahigh frequency RFID data processor through the wireless energy charging and storing device.

Furthermore, the ultrahigh frequency communication antenna is used for wirelessly transmitting the signal which is wirelessly charged and stored by the energy storage device to the wireless ID collector.

Furthermore, the wireless ID collectors are arranged near the train rails and are arranged at intervals of 30 kilometers, wireless signals with IDs, which are transmitted by the ultrahigh frequency communication antennas of each train carriage, are collected, and then pressure values of the ID signals are sent to a railway management system through RS232 lines or Ethernet.

Furthermore, the railway management system sets the pressure value to be a five-gear low pressure when the pressure value is greater than or equal to 3Bar, a two-gear medium pressure when the pressure value is greater than 3Bar and less than 4Bar, a three-gear normal pressure when the pressure value is greater than or equal to 4Bar and less than or equal to 5Bar, a four-gear high pressure when the pressure value is greater than 5Bar, and a five-gear ultrahigh pressure when the pressure value is greater than 7 Bar. A loadable temperature sensor detects the cylinder external temperature.

The invention discloses a train brake cylinder pressure monitoring and collecting system which is characterized by comprising a cylinder pressure sensor, a cylinder temperature detector, a pressure and temperature electric signal generator, an internal algorithm compensator, a high-speed data communication processor, an ultrahigh frequency RFID data processor, a wireless energy charging and storing device, an ultrahigh frequency communication antenna and a wireless ID collector, wherein the cylinder pressure sensor is connected with the cylinder temperature detector; the invention has the beneficial effects that: firstly, monitoring the air pressure of a brake cylinder in real time; secondly, the judgment of personnel experience is not needed; thirdly, collecting data in the sequence of the carriages passing through the collection points; fourthly, high speed, high reliability, ultra-low power consumption and more than 10 years of service life are achieved; fifthly, the sensor has high acquisition precision and high-speed sensing and responding, and can effectively transmit energy and data even if the speed per hour of the train is more than 160 kilometers; sixthly, high and low temperature stability, high water resistance, high earthquake resistance and interference resistance are achieved; seventhly, a special wide-angle energy amplifying storage unit; eighthly, the intelligent management system can be embedded into a railway intranet for intelligent management.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a connection block diagram of the present invention.

Fig. 2 is a working principle diagram of the present invention.

Fig. 3 is a schematic diagram of the use of the present invention.

Fig. 4 is a schematic diagram of a wireless ID collector of the present invention.

Fig. 5 is a schematic view of a brake apparatus of the train.

The objectives, features, and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.