CN111220310A - Operation monitoring and abnormity alarming system and method for contact net compensation device - Google Patents
Operation monitoring and abnormity alarming system and method for contact net compensation device Download PDFInfo
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- CN111220310A CN111220310A CN202010150541.8A CN202010150541A CN111220310A CN 111220310 A CN111220310 A CN 111220310A CN 202010150541 A CN202010150541 A CN 202010150541A CN 111220310 A CN111220310 A CN 111220310A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
- G01L5/047—Specific indicating or recording arrangements, e.g. for remote indication, for indicating overload or underload
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Abstract
The invention discloses a system and a method for monitoring the operation and alarming abnormity of a contact net compensation device, which comprises an upper computer system and a compensation device operation detection system; the upper computer system is installed indoors, and the compensation device operation detection system transmits data detected on site to the upper computer system through wireless communication. The compensation device operation detection system comprises a first laser ranging sensor, a second laser ranging sensor, a first laser reflecting plate and a second laser reflecting plate; the first tension sensor, the second tension sensor and the packaging circuit box; the packaging circuit box is internally provided with a direct current power supply, a power supply output control circuit and a data acquisition and transmission circuit. The invention not only can realize low loss of system operation, but also can realize monitoring and storage of the operation data of the compensation device, can provide data support for the research of abnormal early warning of the compensation device, can realize the alarm of abnormal operation of the compensation device, and provides a guidance basis for on-site operation and maintenance work.
Description
Technical Field
The invention relates to the technical field of signal detection and alarm, in particular to a system and a method for monitoring operation and alarming abnormity of a contact network compensation device.
Background
The contact net mainly comprises a catenary and a contact line, so the existing contact net compensation device generally comprises a catenary compensation device and a contact line compensation device. The catenary compensation device and the contact line compensation device are characterized in that a balance weight is connected to a compensation rope of the catenary compensation device, the compensation rope is connected to one end of a pulley block of the compensation device, the other end of the pulley block is connected with the catenary or the contact line, so that the tension of the catenary or the contact line is increased, and accidents such as unstable current taking from the pantograph of the electric locomotive to the catenary, the pantograph of the electric locomotive passing over to the top end of the contact line and the like caused by excessive shaking of the catenary during the operation of the electric locomotive are prevented.
However, the messenger wire or the contact wire can expand with heat or contract with cold in a high-temperature or cold environment, so that the weight falls or rises. When the weight falls too much, the weight can fall to the ground and is integrated with ground soil and the like, so that the contact net is always in a serious pulling-up state, and the catenary or the contact line can be pulled off; when the weight rises too much, the weight may touch a pulley block of the compensating device, and the compensating device may fail to work.
Therefore, in order to prevent the weight from rising to touch the pulley block or falling to the ground, an upper limiting frame and a lower limiting frame are generally respectively installed above and below the weight at a certain distance so as to limit the motion space of the weight. However, when the weight rises to touch the upper limiting frame, the upper limiting frame gives downward pressure to the weight, so that the tension of the compensating rope and the contact net is increased, and the suspension cable or the contact line of the contact net can be disconnected; when the balance weight descends to touch the lower limiting frame, the lower limiting frame gives upward supporting force to the balance weight, so that the tension of the compensation rope and the contact net is reduced, and the current taking stability of the pantograph of the electric locomotive is affected. Therefore, the running distance of the weight and the tension of the compensation rope need to be detected, and guidance is provided for operation and maintenance work such as real-time adjustment of the upper limiting frame and the lower limiting frame by field workers, so that normal work of the contact net compensation device is guaranteed.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a system and a method for monitoring operation and alarming abnormality of a compensation device of a contact network, which can monitor and alarm abnormality of a running distance of a weight and tension of a compensation rope, thereby providing a foundation for operation and maintenance work such as real-time adjustment of an upper limit frame and a lower limit frame by field workers. The technical scheme is as follows:
a system for monitoring the operation and alarming abnormality of a compensation device of a contact network comprises an upper computer system and a compensation device operation detection system; the operation detection system of the compensation device comprises a first laser ranging sensor, a second laser ranging sensor, a first tension sensor, a second tension sensor and a packaging circuit box;
the first laser ranging sensor is fixed at the top end of a first balance weight connected with the catenary compensation rope, and a first laser reflecting plate is arranged on the bottom surface of the upper limiting frame opposite to a laser emitting head of the first laser ranging sensor;
the second laser ranging sensor is fixed at the top end of a second weight connected with the contact line compensation rope, and a second laser reflecting plate is arranged on the bottom surface of the upper limiting frame opposite to the laser emitting head of the second laser ranging sensor;
the first tension sensor is fixed above the upper limiting frame on the carrier cable compensation rope; the second tension sensor is fixed above the upper limiting frame on the contact line compensation rope;
a data acquisition and transmission circuit is arranged in the packaging circuit box and is used for receiving vertical distance data between the top end of a first weight and the bottom surface of the upper limiting frame, which are acquired by a first laser ranging sensor, vertical distance data between the top end of a second weight and the bottom surface of the upper limiting frame, which are acquired by a second laser ranging sensor, tension data of a catenary compensation rope, which are detected by a first tension sensor, tension data of a contact line compensation rope, which are detected by a second tension sensor, and sending the data to an upper computer system; and the upper computer system analyzes according to the preset threshold value of each data, and gives an alarm when data are abnormal.
Furthermore, the packaging circuit box is also provided with a power output control circuit and a data acquisition and transmission circuit; the power output control circuit comprises a resistor R1, a resistor R2, a resistor R3, an NPN type triode Q1, a PNP type triode Q2 and a capacitor C1;
the data acquisition and transmission circuit comprises a main controller, an analog-to-digital conversion module and a wireless communication module, wherein an I/O port of the main controller is defined as a power output control port ZY _ CTL, and an I/O port of the main controller is defined as a starting control port RE _ CTL of the wireless communication module;
one end of the resistor R1 is connected with a power output control port ZY _ CTL of a main controller in the data acquisition and detection circuit, the other end of the resistor R1 is connected with a base electrode of the triode Q1, an emitter electrode of the triode Q1 is connected with a negative electrode end GND of the direct-current power supply, a collector electrode of the triode Q1 is connected with one end of the resistor R2, the other end of the resistor R2 is connected with one end of the resistor R3 and then connected with a positive electrode end of the direct-current power supply, the other end of the resistor R3 is connected with a base electrode of the triode Q2, a collector electrode of the triode Q2 is connected with a positive electrode end of the direct-current power supply, an emitter electrode of the triode Q2 is connected with; defining the common end of the emitter of the triode Q2 and the capacitor C1 as the output end VCC _ K of the power output control circuit;
the output ends of the first laser ranging sensor, the second laser ranging sensor and the analog-to-digital conversion module are connected with the main controller; the positive potential ends of the power supplies of the first laser ranging sensor and the second laser ranging sensor are both connected with the output end VCC _ K of the power output control circuit, and the negative potential ends are both connected with the negative end GND of the direct current power supply;
the output ends of the first tension sensor and the second tension sensor are respectively connected with the input end of the analog-to-digital conversion module; the positive potential ends of the power supplies in the first tension sensor and the second tension sensor are both connected with the output end VCC _ K of the power output control circuit, and the negative potential ends are both connected with the negative end GND of the direct current power supply;
the positive potential end of the power supply in the wireless communication module is connected with the output end VCC _ K of the power supply output control circuit, the negative potential end is connected with the negative end GND of the direct current power supply, and the work starting port is connected with the starting control port RE _ CTL of the wireless communication module of the main controller;
the positive potential end of the power supply in the main controller is connected with the positive end of the direct current power supply, and the negative potential end of the power supply in the main controller is connected with the negative end GND of the direct current power supply.
An alarm method of an operation monitoring and abnormity alarm system of a contact network compensation device comprises the following steps:
step A: detection and transmission of data
Step A1: the main controller is awakened by an internal timer of the main controller, and then provides a high level for a power output control port ZY _ CTL, and controls an output end VCC _ K of a power output control circuit to output voltage to supply power to the first laser ranging sensor, the second laser ranging sensor, the first tension sensor, the second tension sensor and the wireless communication module;
step A2: the first laser ranging sensor collects vertical distance data D1 between the top end of the first weight and the bottom surface of the upper limiting frame and sends the data to the controller, and the second laser ranging sensor collects vertical distance data D2 between the top end of the second weight and the bottom surface of the upper limiting frame and sends the data to the controller; the first tension sensor detects tension data Z1 of the carrier cable compensation rope and sends the tension data to the controller through the analog-to-digital conversion module; the second tension sensor detects tension data Z2 of the contact line compensation rope and sends the tension data to the main controller through the analog-to-digital conversion module;
step A3: the main controller sends vertical distance data D1, vertical distance data D2, tension data Z1 and tension data Z2 to an upper computer system through a wireless communication module;
step A4: the upper computer system converts the data into real-time simulation data respectively, namely vertical distance simulation data D1 (respectively)t) Vertical distance simulation data D2(t) Catenary tension simulation data Z1 (c)t) Contact line tension simulation data Z2(t) And storing;
and B: alarm for compensation abnormity of carrier cable
Step B1: upper computer system judgment D1(t)<D1LIf the situation is established, judging that the moving distance of a first balance weight connected with the carrier cable compensation rope is over-limited, and starting abnormal alarm work of moving up of the first balance weight; if not, go to step B2; wherein D1LThe lower limit value of the vertical distance between the top end of the first balance weight and the bottom surface of the upper limiting frame;
step B2: upper computer system judgment D1(t)>D1HIf the situation is established, judging that the downward moving distance of the first balance weight is over-limited, and starting abnormal downward moving alarm work of the first balance weight; if not, judging that the moving distance of the first balance weight is not abnormal; wherein D1HThe upper limit value of the vertical distance between the top end of the first balance weight and the bottom surface of the upper limiting frame;
step B3: upper computer system judgment Z1(t)>Z1HIf the tension is over, judging that the tension of the carrier cable compensation rope is over-high, and starting abnormal alarm work when the tension of the carrier cable compensation rope is over-high; if not, go to step B4; wherein Z1HThe upper limit value of the tension of the carrier cable compensation rope is set;
step B4: upper computer system judgment Z1(t)<Z1LIf the tension is not over-low, judging that the tension of the carrier cable compensation rope is over-low, and starting abnormal alarm work when the tension of the carrier cable compensation rope is over-low; if not, judging that the tension of the carrier cable compensation rope is not abnormal; wherein Z1LThe lower limit value of the tension of the carrier cable compensation rope is set;
and C: alarming of contact line compensation abnormity
Step C1: upper computer system judgment D2(t)<D2LIf the situation is established, judging that the upward moving distance of a second balance weight connected with the contact line compensation rope is over-limited, and starting the second balance weight to move upwards abnormally to alarm; if not, go to step C2; wherein D2LThe lower limit value of the vertical distance between the top end of the second balance weight and the bottom surface of the upper limiting frame;
step C2: upper computer system judgment D2(t)>D2HIf the situation is established, judging that the downward movement distance of the second balance weight is over-limit, and starting abnormal downward movement alarm work of the second balance weight; if not, judging that the moving distance of the second balance weight is not abnormal; wherein D2HThe upper limit value of the vertical distance between the top end of the second balance weight and the bottom surface of the upper limiting frame;
step C3: upper computer system judgment Z2(t)>Z2HIf the tension of the contact line compensation rope is over-high, judging that the tension of the contact line compensation rope is over-high, and starting abnormal alarm work when the tension of the contact line compensation rope is over-high; if not, go to step C4; wherein Z2HFor compensating for line tension of contact lineA limit value;
step C4: upper computer system judgment Z2(t)<Z2LIf the tension is not over-low, judging that the tension of the contact wire compensation rope is over-low, and starting abnormal alarm work when the tension of the contact wire compensation rope is over-low; if not, judging that the tension of the contact line compensation rope is not abnormal; wherein Z2LThe lower limit of the rope tension is compensated for the contact line.
Further, the internal timer of the main controller realizes the regular sleep and wake-up work of the main controller, and the sleep and wake-up work mode of the main controller is as follows: the main controller starts sleep operation after 7 minutes of operation and is awakened after 30 minutes of sleep.
The invention has the beneficial effects that:
1) the invention can realize the operation monitoring and abnormal alarming of the contact network compensation device and provide a foundation for the operation maintenance work of the site: the distance between the first balance weight and the second balance weight which are respectively connected with the carrier cable compensation rope and the contact wire compensation rope and the bottom surface of the upper limiting frame can be monitored, so that whether the upward moving distance and the downward moving distance of the first balance weight or the second balance weight of the section exceed the upper limit value or are lower than the lower limit value or not is judged, and corresponding alarm work is realized when the upward moving distance or the downward moving distance exceeds the upper limit value or is lower than the lower limit value; the invention can monitor the tension of the carrier cable compensation rope and the contact line compensation rope, thereby judging whether the tension exceeds the upper limit value or is lower than the lower limit value, and starting corresponding alarm work when the tension exceeds the upper limit value or is lower than the lower limit value. This can provide the basis for operation maintenance work such as the position of on-the-spot adjustment upper limit frame and lower limit frame.
2) The invention can provide a foundation for the research of abnormity early warning: the invention can store the monitored data in the upper computer system to provide a platform and data support for the research of the abnormity early warning of the contact network compensation device.
3) The invention has low power loss: the main controller is periodically dormant and awakened through an internal timer of the main controller, and only after the main controller is awakened, the main controller can control the power output control circuit to output 3.3V voltage to supply power to the first laser ranging sensor, the second laser ranging sensor, the first tension sensor, the second tension sensor, the analog-to-digital conversion module and the wireless communication module. After the main controller is dormant, the main controller is in a low-power-consumption operation mode, and the first laser ranging sensor, the second laser ranging sensor, the first tension sensor, the second tension sensor, the analog-to-digital conversion module and the wireless communication module are in a power-off mode, so that the low-loss operation of the system can be ensured, and the charging or replacement work of the direct-current power supply can be reduced.
Drawings
Fig. 1 is a schematic view of a structure of a catenary compensation device and a schematic view of an installation structure of a compensation device operation detection system of the invention.
Fig. 2 is a schematic circuit connection diagram of the operation detection system of the compensation device of the present invention.
In the figure: 1-a first laser ranging sensor; 2-a second laser ranging sensor; 3-a first laser reflecting plate; 4-a second laser reflecting plate; 5-a first tension sensor; 6-a second tension sensor; 7-packaging the circuit box; 8-carrier cable compensation rope; 9-a first balance weight; 10-upper limit frame; 11-contact line compensation rope; 12-a second balance weight; 13-a pillar; 14-messenger wire; 15-contact line; 16-a pulley block of a catenary compensation device; 17-a pulley block of a contact line compensation device; 18-a first double ring rod; 19-a second double loop bar; 20-lower restraint bracket; 21-anchor bearing angle steel; 22-line anchor angle steel; 23-ground.
The catenary compensation device comprises a pulley block of the catenary compensation device, a catenary compensation rope and a first balance weight connected with the catenary compensation rope; the contact line compensation device comprises a pulley block of the contact line compensation device, a contact line compensation rope and a second weight connected with the contact line compensation rope; the catenary compensation device is tensioned and fixed between the strut and the catenary through anchor bearing angle steel and a first double-ring rod, the contact line compensation device is tensioned and fixed between the strut and the contact line through the anchor bearing angle steel and a second double-ring rod, and the strut is fixed on the ground.
Detailed Description
The invention is described in further detail below with reference to the figures and specific embodiments. As shown in fig. 1, an operation monitoring and abnormality alarming system for a catenary compensation device comprises an upper computer system and a compensation device operation detection system; the compensation device operation detection system comprises a first laser ranging sensor, a second laser ranging sensor, a first laser reflecting plate and a second laser reflecting plate; the first tension sensor, the second tension sensor and the packaging circuit box; the first laser ranging sensor is fixed at the top end of a first weight connected with the catenary compensation rope, the first laser reflection plate is installed on the bottom surface of the upper limiting frame, and a first laser emitting head of the first laser ranging sensor is over against the center of the first laser reflection plate; the second laser ranging sensor is fixed at the top end of a second weight connected with the contact line compensation rope, the second laser reflection plate is installed on the bottom surface of the upper limiting frame, and a second laser emitting head of the second laser ranging sensor is over against the center of the second laser reflection plate; the first tension sensor is arranged on the position, 40 cm away from the upper limit frame, of the carrier cable compensation rope; the second tension sensor is arranged on the contact line compensation rope at a position 40 cm away from the upper limit frame; the packaging circuit box is arranged on a support of the fixed contact net compensation device; the first laser ranging sensor, the second laser ranging sensor, the first tension sensor and the second tension sensor are all connected with the packaging circuit box through sealed cables; wherein the upper computer system is arranged indoors.
As shown in fig. 2, a 3.3V dc power supply, a power output control circuit, and a data acquisition and transmission circuit are installed in the package circuit box.
The power output control circuit is composed of a resistor R1 with the resistance value of 1k omega, a resistor R2 with the resistance value of 10k omega, a resistor R3 with the resistance value of 1k omega, an NPN type triode Q1, a PNP type triode Q2 and a capacitor C1 with the size of 30 muF.
The data acquisition and transmission circuit consists of a main controller, a first laser ranging sensor, a second laser ranging sensor, a first tension sensor, a second tension sensor, an analog-to-digital conversion module and a wireless communication module, wherein an I/O port of the main controller is defined as a power output control port ZY _ CTL, and an I/O port of the main controller is defined as a starting control port RE _ CTL of the wireless communication module.
In the power output control circuit, one end of a resistor R1 is connected with a power output control port ZY _ CTL of a main controller in the data acquisition and detection circuit, the other end of the resistor R1 is connected with a base electrode of a triode Q1, an emitter electrode of a triode Q1 is connected with a negative electrode end GND of a 3.3V direct-current power supply, a collector electrode of a triode Q1 is connected with one end of a resistor R2, the other end of a resistor R2 is connected with one end of a resistor R3 and then connected with a positive electrode end V3.3 of the 3.3V direct-current power supply, the other end of a resistor R3 is connected with a base electrode of a triode Q2, a collector electrode of a triode Q2 is connected with a positive electrode end V3.3V direct-current power supply, an emitter electrode of a transistor Q2 is connected with one end of a; the common terminal between the emitter of the transistor Q2 and the capacitor C1 is defined as the output terminal VCC _ K of the power output control circuit.
The internal timer of the main controller realizes the regular dormancy and awakening work of the main controller, and the dormancy and awakening work mode of the main controller is as follows: the main controller starts sleep operation after 7 minutes of operation and is awakened after 30 minutes of sleep.
In the data acquisition and transmission circuit, the output ends of the first laser ranging sensor, the second laser ranging sensor and the analog-to-digital conversion module are connected with a main controller; the positive potential ends in the power supply of the first laser ranging sensor and the second laser ranging sensor are both connected with the output end VCC _ K of the power output control circuit, and the negative potential ends in the power supply of the first laser ranging sensor and the second laser ranging sensor are both connected with the negative end GND of the 3.3V direct-current power supply; the positive potential ends of the power supplies in the first tension sensor and the second tension sensor are both connected with the output end VCC _ K of the power output control circuit, and the negative potential ends of the power supplies in the first tension sensor and the second tension sensor are both connected with the negative end GND of the 3.3V direct-current power supply; the output ends of the first tension sensor and the second tension sensor are respectively connected with the input end of the analog-to-digital conversion module; the positive potential end of the power supply in the wireless communication module is connected with the output end VCC _ K of the power supply output control circuit, the negative potential end of the power supply in the wireless communication module is connected with the negative end GND of the 3.3V direct-current power supply, and the work starting port of the wireless communication module is connected with the starting control port RE _ CTL of the wireless communication module of the main controller; the positive potential end of the power supply in the main controller is connected with the positive end V3.3 of the 3.3V direct current power supply, and the negative potential end of the power supply in the main controller is connected with the negative end GND of the 3.3V direct current power supply.
The invention relates to a system for monitoring the operation and alarming abnormity of a contact network compensation device, which comprises the following steps:
step A: detection and transmission of data
Step A1: the main controller is awakened by an internal timer of the main controller, and then outputs a high level to the power output control port ZY _ CTL, and controls the output end VCC _ K of the power output control circuit to output 3.3V voltage to supply power to the first laser ranging sensor, the second laser ranging sensor, the first tension sensor, the second tension sensor and the wireless communication module.
Step A2: the first laser ranging sensor collects vertical distance data D1 between the top end of a first weight connected with the catenary compensation rope and the bottom surface of the upper limiting frame, and sends D1 to the controller through a serial port, and the second laser ranging sensor collects vertical distance data D2 between the top end of a second weight connected with the contact line compensation rope and the bottom surface of the upper limiting frame, and sends D2 to the controller through a serial port; the first tension sensor detects the tension of the catenary compensation rope and transmits the tension to the analog-to-digital conversion module, and the analog-to-digital conversion module sends tension data Z1 of the catenary compensation rope to the controller through a serial port; the second tension sensor detects the tension of the carrier cable compensation rope and transmits the tension to the analog-to-digital conversion module, and the analog-to-digital conversion module sends tension data Z2 of the contact line compensation rope to the main controller through a serial port.
Step A3: the main controller gives a high level to a starting control port RE _ CTL of the wireless communication module to start data transmission work of the wireless communication module, and the wireless communication module sends vertical distance data D1 between the top end of a first weight and the bottom surface of an upper limiting frame, vertical distance data D2 between the top end of a second weight and the bottom surface of the upper limiting frame, tension data Z1 of a catenary compensation rope and tension data Z2 of a contact line compensation rope which are transmitted by the main controller to the upper computer system.
Step A4: the upper computer system receives the dataD1, D2, D3 and D4 are respectively converted into real-time analog data, and the converted data are respectively: simulation data D1 of the vertical distance between the top end of the first weight and the bottom surface of the upper limiting frame (t) Simulation data D2 of the vertical distance between the top end of the second weight and the bottom surface of the upper limiting frame (t) Catenary tension simulation data Z1 (c)t) Contact line tension simulation data Z2(t) And D1(t)、D2(t)、Z1(t)、Z2(t) And (4) storing.
And B: alarm for compensation abnormity of carrier cable
Step B1: upper computer system judgment D1(t)<D1LIf the situation is established, judging that the moving distance of a first balance weight connected with the carrier cable compensation rope is over-limited, and starting abnormal alarm work of moving up of the first balance weight; if not, go to step B2; wherein D1LThe lower limit value of the vertical distance between the top end of the first balance weight and the bottom surface of the upper limiting frame.
Step B2: upper computer system judgment D1(t)>D1HIf the situation is established, judging that the downward moving distance of the first balance weight is over-limited, and starting abnormal downward moving alarm work of the first balance weight; if not, judging that the moving distance of the first balance weight is not abnormal; wherein D1HThe upper limit value of the vertical distance between the top end of the first balance weight and the bottom surface of the upper limiting frame.
Step B3: upper computer system judgment Z1(t)>Z1HIf the tension is over, judging that the tension of the carrier cable compensation rope is over-high, and starting abnormal alarm work when the tension of the carrier cable compensation rope is over-high; if not, go to step B4; wherein Z1HThe upper limit value of the tension of the carrier cable compensation rope is obtained.
Step B4: upper computer system judgment Z1(t)<Z1LIf the tension is not over-low, judging that the tension of the carrier cable compensation rope is over-low, and starting abnormal alarm work when the tension of the carrier cable compensation rope is over-low; if not, judging that the tension of the carrier cable compensation rope is not abnormal; wherein Z1LThe lower limit value of the tension of the carrier cable compensation rope is obtained.
And C: alarming of contact line compensation abnormity
Step C1: upper computer system judgment D2(t)<D2LWhether or not it is establishedIf so, judging that the upward moving distance of a second balance weight connected with the contact line compensation rope is over-limited, and starting the second balance weight to move upward abnormally to alarm; if not, go to step C2; wherein D2LThe lower limit value of the vertical distance between the top end of the second balance weight and the bottom surface of the upper limiting frame.
Step C2: upper computer system judgment D2(t)>D2HIf the situation is established, judging that the downward movement distance of the second balance weight is over-limit, and starting abnormal downward movement alarm work of the second balance weight; if not, judging that the moving distance of the second balance weight is not abnormal; wherein D2HThe upper limit value of the vertical distance between the top end of the second balance weight and the bottom surface of the upper limiting frame.
Step C3: upper computer system judgment Z2(t)>Z2HIf the tension of the contact line compensation rope is over-high, judging that the tension of the contact line compensation rope is over-high, and starting abnormal alarm work when the tension of the contact line compensation rope is over-high; if not, go to step C4; wherein Z2HThe upper limit of rope tension is compensated for the contact line.
Step C4: upper computer system judgment Z2(t)<Z2LIf the tension is not over-low, judging that the tension of the contact wire compensation rope is over-low, and starting abnormal alarm work when the tension of the contact wire compensation rope is over-low; if not, judging that the tension of the contact line compensation rope is not abnormal; wherein Z2LThe lower limit of the rope tension is compensated for the contact line.
Claims (4)
1. A contact network compensation device operation monitoring and abnormity alarm system is characterized by comprising an upper computer system and a compensation device operation detection system; the operation detection system of the compensation device comprises a first laser ranging sensor (1), a second laser ranging sensor (2), a first tension sensor (5), a second tension sensor (6) and a packaging circuit box (7);
the first laser ranging sensor (1) is fixed at the top end of a first weight (9) connected with the catenary compensation rope (8), and a first laser reflecting plate (3) is arranged on the bottom surface of an upper limiting frame (10) opposite to a laser emitting head of the first laser ranging sensor (1);
the second laser ranging sensor (2) is fixed at the top end of a second weight (12) connected with the contact line compensation rope (11), and a second laser reflection plate (4) is arranged on the bottom surface of the upper limiting frame (10) opposite to the laser emitting head of the second laser ranging sensor (2);
the first tension sensor (5) is fixed on the carrier cable compensation rope (8) and is positioned above the upper limiting frame (10); the second tension sensor (6) is fixed on the contact line compensation rope (11) and is positioned above the upper limiting frame (10);
a data acquisition and transmission circuit is arranged in the packaging circuit box (7) and is used for receiving vertical distance data of the top end of a first balance weight (9) and the bottom surface of an upper limiting frame (10) acquired by a first laser ranging sensor (1), vertical distance data of the top end of a second balance weight (12) and the bottom surface of the upper limiting frame (10) acquired by a second laser ranging sensor (2), tension data of a catenary compensation rope (8) detected by a first tension sensor (5), tension data of a contact line compensation rope (11) detected by a second tension sensor (6) and sending the data to an upper computer system; and the upper computer system analyzes according to the preset threshold value of each data, and gives an alarm when data are abnormal.
2. The operation monitoring and abnormity warning system of the contact network compensation device according to claim 1, wherein the packaging circuit box (7) is further provided with a power output control circuit and a data acquisition and transmission circuit; the power output control circuit comprises a resistor R1, a resistor R2, a resistor R3, an NPN type triode Q1, a PNP type triode Q2 and a capacitor C1;
the data acquisition and transmission circuit comprises a main controller, an analog-to-digital conversion module and a wireless communication module, wherein an I/O port of the main controller is defined as a power output control port ZY _ CTL, and an I/O port of the main controller is defined as a starting control port RE _ CTL of the wireless communication module;
one end of the resistor R1 is connected with a power output control port ZY _ CTL of a main controller in the data acquisition and detection circuit, the other end of the resistor R1 is connected with a base electrode of the triode Q1, an emitter electrode of the triode Q1 is connected with a negative electrode end GND of the direct-current power supply, a collector electrode of the triode Q1 is connected with one end of the resistor R2, the other end of the resistor R2 is connected with one end of the resistor R3 and then connected with a positive electrode end of the direct-current power supply, the other end of the resistor R3 is connected with a base electrode of the triode Q2, a collector electrode of the triode Q2 is connected with a positive electrode end of the direct-current power supply, an emitter electrode of the triode Q2 is connected with; defining the common end of the emitter of the triode Q2 and the capacitor C1 as the output end VCC _ K of the power output control circuit;
the output ends of the first laser ranging sensor (1), the second laser ranging sensor (2) and the analog-to-digital conversion module are connected with a main controller; the positive potential ends in the power supply of the first laser ranging sensor (1) and the second laser ranging sensor (2) are connected with the output end VCC _ K of the power output control circuit, and the negative potential ends are connected with the negative end GND of the direct current power supply;
the output ends of the first tension sensor (5) and the second tension sensor (6) are respectively connected with the input end of the analog-to-digital conversion module; the positive potential ends of the power supplies in the first tension sensor (5) and the second tension sensor (6) are both connected with the output end VCC _ K of the power output control circuit, and the negative potential ends are both connected with the negative end GND of the direct current power supply;
the positive potential end of the power supply in the wireless communication module is connected with the output end VCC _ K of the power supply output control circuit, the negative potential end is connected with the negative end GND of the direct current power supply, and the work starting port is connected with the starting control port RE _ CTL of the wireless communication module of the main controller;
the positive potential end of the power supply in the main controller is connected with the positive end of the direct current power supply, and the negative potential end of the power supply in the main controller is connected with the negative end GND of the direct current power supply.
3. The alarm method of the operation monitoring and abnormity alarm system of the contact network compensation device as claimed in claim 2, characterized by comprising the following steps:
step A: detection and transmission of data
Step A1: the main controller is awakened by an internal timer of the main controller, and then outputs a high level to the power output control port ZY _ CTL, and controls the output end VCC _ K of the power output control circuit to output voltage to supply power to the first laser ranging sensor (1), the second laser ranging sensor (2), the first tension sensor (5), the second tension sensor (6) and the wireless communication module;
step A2: the first laser ranging sensor (1) collects vertical distance data D1 between the top end of the first weight (9) and the bottom surface of the upper limiting frame (10) and sends the data to the controller, and the second laser ranging sensor (2) collects vertical distance data D2 between the top end of the second weight (12) and the bottom surface of the upper limiting frame (10) and sends the data to the controller; the first tension sensor (5) detects tension data Z1 of the carrier cable compensation rope (8) and sends the tension data Z1 to the controller through an analog-to-digital conversion module; the second tension sensor (6) detects tension data Z2 of the contact line compensation rope (11) and sends the tension data to the main controller through an analog-to-digital conversion module;
step A3: the main controller sends vertical distance data D1, vertical distance data D2, tension data Z1 and tension data Z2 to an upper computer system through a wireless communication module;
step A4: the upper computer system converts the data into real-time simulation data respectively, namely vertical distance simulation data D1 (respectively)t) Vertical distance simulation data D2(t) Catenary tension simulation data Z1 (c)t) Contact line tension simulation data Z2(t) And storing;
and B: alarm for compensation abnormity of carrier cable
Step B1: upper computer system judgment D1(t)<D1LIf the situation is true, judging that the upward moving distance of a first balance weight (9) connected with the carrier cable compensation rope (8) is over-limited, and starting the first balance weight (9) to move upwards abnormally to alarm; if not, go to step B2; wherein D1LThe lower limit value of the vertical distance between the top end of the first balance weight (9) and the bottom surface of the upper limiting frame (10);
step B2: upper computer system judgment D1(t)>D1HIf the situation is established, judging that the downward movement distance of the first balance weight (9) is over-limited, and starting abnormal downward movement alarm work of the first balance weight (9); if not, the first balance weight (9) is judged to moveThe moving distance is not abnormal; wherein D1HThe upper limit value of the vertical distance between the top end of the first balance weight (9) and the bottom surface of the upper limiting frame (10);
step B3: upper computer system judgment Z1(t)>Z1HIf the situation is established, judging that the tension of the carrier cable compensation rope (8) is overlarge, and starting abnormal alarm work when the tension of the carrier cable compensation rope (8) is overlarge; if not, go to step B4; wherein Z1HThe upper limit value of the tension of the carrier cable compensation rope (8) is set;
step B4: upper computer system judgment Z1(t)<Z1LIf the situation is true, judging that the tension of the carrier cable compensation rope (8) is too small, and starting abnormal alarm work when the tension of the carrier cable compensation rope (8) is too small; if not, judging that the tension of the carrier cable compensation rope (8) is not abnormal; wherein Z1LThe lower limit value of the tension of the carrier cable compensation rope (8) is set;
and C: alarming of contact line compensation abnormity
Step C1: upper computer system judgment D2(t)<D2LIf the situation is true, judging that the upward moving distance of a second balance weight (12) connected with the contact line compensation rope (11) is over-limited, and starting the second balance weight (12) to move upwards abnormally to alarm; if not, go to step C2; wherein D2LThe lower limit value of the vertical distance between the top end of the second balance weight (12) and the bottom surface of the upper limiting frame (10);
step C2: upper computer system judgment D2(t)>D2HIf the situation is true, judging that the downward movement distance of the second balance weight (12) is over-limited, and starting abnormal downward movement alarm work of the second balance weight (12); if not, judging that the moving distance of the second balance weight (12) is not abnormal; wherein D2HThe upper limit value of the vertical distance between the top end of the second balance weight (12) and the bottom surface of the upper limiting frame (10);
step C3: upper computer system judgment Z2(t)>Z2HIf the tension is over, judging that the tension of the contact line compensation rope (11) is over-large, and starting abnormal alarm work when the tension of the contact line compensation rope (11) is over-large; if not, go to step C4; wherein Z2HThe upper limit value of the tension of the contact line compensation rope (11);
step C4: upper computer system judgment Z2(t)<Z2LIf the tension is over-low, judging that the tension of the contact line compensation rope (11) is over-low, and starting abnormal alarm work when the tension of the contact line compensation rope (11) is over-low; if not, judging that the tension of the contact line compensation rope (11) is not abnormal; wherein Z2LThe lower limit value of the tension of the rope (11) is compensated for by the contact line.
4. The alarm method according to claim 4, wherein the internal timer of the main controller implements the periodic sleep and wake-up operations of the main controller, and the sleep and wake-up operations of the main controller are as follows: the main controller starts sleep operation after 7 minutes of operation and is awakened after 30 minutes of sleep.
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| CN202010150541.8A CN111220310A (en) | 2020-03-06 | 2020-03-06 | Operation monitoring and abnormity alarming system and method for contact net compensation device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111675066A (en) * | 2020-07-07 | 2020-09-18 | 广东卓梅尼技术股份有限公司 | Elevator compensating rope tensioning device fault determination method and system based on laser ranging |
| CN111693000A (en) * | 2020-06-22 | 2020-09-22 | 中铁七局集团电务工程有限公司 | Rail transit contact net compensation monitoring device and monitoring method |
| CN111890993A (en) * | 2020-06-29 | 2020-11-06 | 中铁第一勘察设计院集团有限公司 | Contact net lower anchor weight compensation limiting device |
| CN113739849A (en) * | 2021-09-03 | 2021-12-03 | 上海地铁维护保障有限公司 | Concealed lower anchor weight detection device of rail transit contact net |
| CN113739849B (en) * | 2021-09-03 | 2024-06-07 | 上海地铁维护保障有限公司 | Rail transit contact net concealed type falling weight detection device |
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2020
- 2020-03-06 CN CN202010150541.8A patent/CN111220310A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693000A (en) * | 2020-06-22 | 2020-09-22 | 中铁七局集团电务工程有限公司 | Rail transit contact net compensation monitoring device and monitoring method |
| CN111693000B (en) * | 2020-06-22 | 2022-01-25 | 中铁七局集团电务工程有限公司 | Rail transit contact net compensation monitoring device and monitoring method |
| CN111890993A (en) * | 2020-06-29 | 2020-11-06 | 中铁第一勘察设计院集团有限公司 | Contact net lower anchor weight compensation limiting device |
| CN111890993B (en) * | 2020-06-29 | 2022-03-22 | 中铁第一勘察设计院集团有限公司 | Contact net lower anchor weight compensation limiting device |
| CN111675066A (en) * | 2020-07-07 | 2020-09-18 | 广东卓梅尼技术股份有限公司 | Elevator compensating rope tensioning device fault determination method and system based on laser ranging |
| CN113739849A (en) * | 2021-09-03 | 2021-12-03 | 上海地铁维护保障有限公司 | Concealed lower anchor weight detection device of rail transit contact net |
| CN113739849B (en) * | 2021-09-03 | 2024-06-07 | 上海地铁维护保障有限公司 | Rail transit contact net concealed type falling weight detection device |
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