CN2592898Y - Automatic monitoring device of helium compressor for superconducting gravity meter - Google Patents
Automatic monitoring device of helium compressor for superconducting gravity meter Download PDFInfo
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- CN2592898Y CN2592898Y CN 03235144 CN03235144U CN2592898Y CN 2592898 Y CN2592898 Y CN 2592898Y CN 03235144 CN03235144 CN 03235144 CN 03235144 U CN03235144 U CN 03235144U CN 2592898 Y CN2592898 Y CN 2592898Y
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Abstract
The utility model relates to an automatic monitor of a helium compressor for a superconducting gravity meter, particularly an automatic monitoring protector for the helium compressor, which can be used for measuring, earthquake, medical and other departments. The automatic monitor is composed of a temperature sensor, a charge and a discharge circuits, a control processor, a driver, a character display, an alarm, a relay, a communication interface, an operation keyboard, a computer recording system, etc. The utility model collects monitor and control functions into integration, can display and monitor temperatures of charged/discharged water of the compressor and temperature difference thereof in real time, and has the advantages of simple structure, high precision, real time, low power consumption, etc. When the water temperature or the temperature difference goes beyond a setting range, the automatic monitor can send out sound and light alarms, and simultaneously cut off a power supply of the compressor quickly to protect the compressor. The automatic monitor can also output the result data of the current water temperature to the computer recording system via the communication interface. The utility model is especially suitable for on-site continuous automatic monitoring and unmanned station monitoring.
Description
Technical field
The utility model relates to a kind of compressor supervisory device, specifically, relates to a kind of monitoring and protecting device that is used for helium compressor, can be widely used in measurement, earthquake, medical treatment and other department.
Background technique
Superconductor gravimeter utilizes the intrinsic stability of supercurrent, and the mechanical spring that has substituted traditional gravimeter with magnetic suspension hangs, thereby has high sensitivity and stability, is one of gravimeter that precision is the highest in the world today.It not only can be used for detecting and study the morning and evening tides of solid earth, freely examine the geodynamics phenomenons such as tectonic movement of nutating, free-oscillation, rotation variation and the earth's crust, can also be used to studying the interaction of each ring layer such as atmosphere, ocean and underground water and the coupling effect of gravity field, for Modern Geodesy and space measurement technology provide the observation benchmark.
As the important corollary equipment of superconductor gravimeter, the refrigeration decompressor that helium compressor is being born to gravimeter provides high pressure pure helium, and the task of making it to recycle, to satisfy the job requirement of superconductor gravimeter ultralow temperature.
Yet there is the problem of the following aspects in present helium compressor:
In case 1. the duration of work water yield is under-supply or the leakage of water takes place, all may causes the rapid intensification of compressor and burn, and then pollute the major accident of superconductor gravimeter body.
2. circulate state because the helium compressor cooling water is in sealing, be difficult to its temperature is monitored in real time, judge and processing, bring hidden danger to work so that the attendant can not in time make fault.
3. present helium compressor does not possess the ability of the temperature difference of the water temperature of real-time demonstration compressor cooling water and confession/draining.
4. can not carry out the setting of the temperature range of coolant water temperature and confession/draining in advance according to user's needs, on the application, be restricted.
5. when coolant water temperature or the temperature difference exceed setting range, can not carry out sound automatically, light is reported to the police, and reminds the attendant in time to reach the spot, fix a breakdown.
6. when coolant water temperature or the temperature difference exceed setting range, can not cut off compressor power automatically, reach the purpose of protection compressor.
7. the temperature difference data of the temperature of compressor cooling water and confession/draining can not be outputed to the computer recording system and store, judge, as the foundation of repair and maintenance from now on so that carry out analysis afterwards.
Summary of the invention
The purpose of this utility model is exactly to overcome the problems referred to above and the deficiency that prior art exists, and a kind of superconductor gravimeter helium compressor automatic monitoring device is provided.Specifically, the first adopts sensor and microcomputer technology, monitor set, is controlled in one, realizes the confession/Temperature at discharging condensate of compressor and the real-time demonstration and the monitoring of the temperature difference between them; It two is when water temperature or the temperature difference exceed setting range, can cut off compressor power rapidly when sound, light are reported to the police, reaches the purpose of protection compressor; Its three be with the result data of current water temperature by communication interface, output to the computer recording system; Its four be simple in structure, precision is high, low in energy consumption.
The purpose of this utility model be achieved in that be it by temperature transducer, charge and discharge parts such as circuit, control processing device, driver, alphanumeric display, alarm, relay, communication interface, operation keyboard, computer recording system and form.After finishing power-on self-test, the circuit that charges and discharge that links to each other with temperature transducer on being placed in helium compressor confession/waste pipe begins charging, and meanwhile the timer of control processing device picks up counting.When charging voltage reaches reference voltage, the moment of rising edge appears in built-in comparator output terminal, and the control processing device promptly reads the duration of charge from timer.Because the resistance value of temperature transducer is directly proportional with the survey water temperature, and the time of charging is one-to-one relationship with this resistance value, so according to the relation of duration of charge with the water temperature of surveying, the control processing device carries out corresponding calculated to be handled, and can obtain the result data of water temperature in current confession/waste pipe.Be converted into ASCII character, on alphanumeric display, show centigrade mode, show the coolant water temperature and the temperature difference of compressor confession/draining continuously in real time with numeral; Exceed the scope that we set in case find the water temperature or the temperature difference, promptly when sound, light are reported to the police,, cut off compressor power rapidly, reach the purpose of protection compressor by relay control.In addition, the result data of current water temperature also can pass through the RS-232 communication interface, outputs to the computer recording system with serial mode, as the foundation of repair and maintenance from now on.
The utility model compared with prior art has the following advantages and good effect:
1. device adopts controlled by single chip microprocessor, and simple in structure, easy to operate, antijamming capability is strong, has lower power consumption.
2. round-the-clock, continuously provide monitoring in real time to compressor, possess the ability of the temperature difference of the coolant water temperature that shows compressor simultaneously and confession/draining, help monitoring to the helium compressor working state.
3. device can cut off compressor power automatically when coolant water temperature or the temperature difference exceed setting range, reaches the purpose of protection compressor.
4. device also has setting, a switching capability, and the user can supply by keyboard/the demonstration switching of observation datas such as the resistance value of draining, temperature value, temperature approach and the setting of alarm threshold value.
5. device also can carry out sound automatically when coolant water temperature or the temperature difference exceed setting range, light is reported to the police, and reminds the attendant in time to reach the spot, and fixes a breakdown.
6. Zhuan Zhi RS-232 communication interface can via the serial communication cable, output to the storage of computer recording system with the coolant water temperature of compressor and the temperature difference data of confession/draining, as analyzing the foundation of safeguarding from now on.
7. device utilizes the built-in accurate analog comparator of control processing device to be used for the mould/number conversion of testing signal.Not only saved the conditioning circuit of common needed A/D converter and necessary corresponding configuration, reduced cost, reduced the volume of device, also made control become easily, taking of resource reduces to minimum.
8. install the 8 bit data transmission means that alphanumeric display is traditional and change 4 transmission into, reduced taking of mouthful line resource, circuit is simplified.
9. except need be on helium compressor confession/waste pipe mounting temperature sensor and the power line of helium compressor inserted the socket of this device, need not make any change to original compressor assembly, have application value.
Description of drawings
Fig. 1 forms skeleton diagram for this device;
Fig. 2 is this device built-up circuit schematic diagram;
Fig. 3 is this device form structure front panel schematic representation;
Fig. 4 is this device form structure rear board schematic representation.
Wherein
1-temperature transducer A, present embodiment is selected the TD4 of Honeywell company for use;
2-temperature transducer B, present embodiment is selected the TD4 of Honeywell company for use;
3-control processing device, present embodiment are selected the P87LPC764 and the support circuit thereof of PHILIPS company for use;
4-charges and discharge circuit A;
5-charges and discharge circuit B;
The 6-relay;
The 7-helium compressor;
The 8-driver;
The 9-reference voltage;
The indication of 11-power supply;
12-warning LED;
The indication of 13-alarm switch;
14-is provided with key;
The 15-options button;
16-computer recording system;
The 17-alarm switch;
18-bias light switch;
19-alphanumeric display, present embodiment are selected the DMC16230 of OPTREX company for use;
The 20-casing;
The 21-support;
The 22-under-chassis;
The 23-sensor socket;
The power socket of 24-helium compressor;
The 25-RS-232 communication interface, present embodiment is selected MAX202 for use;
The 26-safety fuse cutout;
The 27-power socket;
The 28-power switch;
The 29-alarm, voice guard.
Embodiment
Further specify below in conjunction with drawings and Examples.
As shown in Figure 1, the circuit board of this device is installed in the casing 20.Temperature transducer A1 links to each other with the input end that charges and discharge circuit A4; Temperature transducer B2 links to each other with the input end that charges and discharge circuit B5; Charge and discharge the output terminal of circuit A4, the output terminal that charges and discharge circuit B5, reference voltage 9, options button 15, key 14 is set links to each other with the input end of control processing device 3 respectively; The output terminal of control processing device 3 links to each other with the input end of the input end of RS-232 communication interface 25, alphanumeric display 19, driver 8 respectively; The output terminal of RS-232 communication interface 25 links to each other with computer recording system 16; The output terminal of driver 8 links to each other with the input end of relay 6; The output terminal of relay 6 links to each other with report to the police indication 12 and alarm 29 with helium compressor 7 respectively.
As shown in Figure 3, on the front panel of casing 20, be equipped with power supply indication 11, the indication 12 of reporting to the police, alarm switch indication 13, key 14, options button 15, alarm switch 17, bias light switch 18, alphanumeric display 19 are set.
As shown in Figure 4, temperature transducer socket 23, helium compressor power socket 24, RS-232 communication interface 25, safety fuse cutout 26, power socket 27, power switch 28, alarm 29 are installed on the rear board of casing 20.
This device is to utilize control processing device 3 two built-in accurate analog comparators to be respectively applied for the mould/number conversion that detects helium compressor 7 confession/draining signals.The conditioning circuit that this has not only saved common needed A/D converter and necessary corresponding configuration has reduced cost, has reduced the volume of device, also makes control become easily, and taking of resource reduces to minimum.
Fig. 2 is the circuit theory diagrams of Fig. 1 correspondence.
* the control processing device 3
The inside memory of control processing device 3 is divided into program and data memory two-part.Wherein, management, monitor program are deposited in the memory under program, and the intermediate object program deposit data is in data memory.
SS1 crystal oscillator and capacitor C 3, C4 form the crystal oscillating circuit of 12MHz, and linking to each other with X1, the X2 pin of control processing device 3 constitutes the internal oscillator mode, is used to provide the time reference of various micromanipulators in the control processing device 3.
* charge and discharge circuit A4, charge and discharge circuit B5
Charge and discharge circuit A4, charge and discharge circuit B5 and be made up of following elements respectively, its annexation is: the end of the resistance R T1 of temperature transducer, resistance R T2 links to each other with+5V power supply, and the other end of resistance R T1 links to each other with an end of capacitor C 1 and resistance R 1; The other end of resistance R T2 links to each other with an end of capacitor C 2 and resistance R 2; And the other end of resistance R 1, resistance R 2 links to each other with two normal phase input end CIN1, CIN2 of control processing device 3 respectively.
The resistance R T1 of the temperature transducer A1 that is laid by the water-supplying mouth pipeline and capacitor C 1 are formed and are charged and discharged circuit A4, and its charging voltage is added to the normal phase input end CIN1 of analog comparator via current-limiting resistance R1; The resistance R T2 of the temperature transducer B2 that is laid by the drain opening pipeline and capacitor C 2 are formed and are charged and discharged circuit B5, and its charging voltage is added to the normal phase input end CIN2 of analog comparator via current-limiting resistance R2.When detecting beginning, capacitor C1, C2 begin charging by RT1, RT2 respectively; Meanwhile, the P87LPC764 timer picks up counting.When charging voltage reaches the moment that rising edge appears in reference voltage, comparator output terminal, the duration of charge of reading RT1C1, RT2C2 respectively from timer.According to the relation of duration of charge with the water temperature of surveying, P87LPC764 carries out corresponding calculated to be handled, and can obtain the result data of current confession/Temperature at discharging condensate respectively.
The P0.0 pin of options button 15 access control process 3 triggers it and interrupts when button is pressed, under the prompting of alphanumeric display 19 on-screen menus, adopt the page turning mode, shows in real time successively: the resistance of confession/Temperature at discharging condensate sensor, temperature and temperature difference information.
The P0.1 pin of key 14 access control process 3 is set, when button is pressed, triggers the interruption of its correspondence, under the prompting of alphanumeric display 19 on-screen menus, import successively: the alarm threshold value of water supply and Temperature at discharging condensate by the user.
* driver 8, relay 6
When the compound transistor conducting of the common formation of triode N1, N2 ,+5V power supply is the power supply of REL1 coil winding.R9 is a current-limiting resistance, prevents that the electric current on the coil winding is excessive.R6 provides divided current for warning LED12.Inductance L, capacitor C 8, C9 constitute jointly+eliminator of 5V power supply, and the interference that level and smooth alarm 29 intermittently forms during sounding.
REL1 coil winding contact is in off state at ordinary times, make+5V voltage can not add to the REL2 coil winding, so that normally-closed contact REL2-1 is in closed state, makes the alternating voltage of 220V can be added on the power line of helium compressor 7 the compressor proper functioning; Normally opened contact REL2-2 is in off state, and no current is by alarm 29 and warning LED12 (red light emitting diodes L2), and alarm 29 not sounding is warned, and warning LED12 does not glimmer.In case control processing device 3 inquires water temperature or the temperature difference exceeds the alarm threshold value of setting, then by the P1.4 pin, the output high level, driver 8 through capacitor C 0, resistance R 0 and triode N1, N2 and REL coil winding formation drives relays 6, make its normally-closed contact REL2-1 be in off state, cut off the power supply of helium compressor 7 rapidly, reach the purpose of protection compressor; And normally opened contact REL2-2 closure this moment ,+5V voltage inserts, and alarm 29 intermittently sounding is warned, warning LED12 flicker.
* report to the police LED12, alarm switch indication 13, alarm switch 17, alarm 29
Warning LED12, alarm switch indication 13, alarm switch 17, alarm 29 are made up of following elements, and its annexation is: resistance R 6 and light emitting diode L2 mutually and connect, their end links to each other with an end of alarm 29, the other end links to each other with alarm switch 17; Resistance R 7 one ends link to each other with alarm switch 17, and its other end links to each other with light emitting diode L3, and the other end of L3 links to each other with ground.Alarm 29 the other ends link to each other with relay R EL2.
* alphanumeric display 19
Change alphanumeric display 19 8 traditional bit data transmission means into 4 transmission, be that control processing device 3 is under 4 bit data bus forms, according to high 4 orders of transmitting low 4 again of transmission earlier, send 8 bit instruction code or data to alphanumeric display 19 at twice, reduced the taking of I/O mouth line resource of limited Gong the programming of control processing device 3, circuit is simplified.4 parallel-by-bit data/address bus of alphanumeric display 19 directly connect with P1.1, P1.2, P1.6, the P1.7 pin of control processing device 3; And P0.3, P0.6, P0.7 pin respectively incoming character display device 19 enable E, read/write selects R/W, instruction/data register to select the RS signaling line.When bias light switch 18 closed, 5V voltage added to the back-illumination source of alphanumeric display 19, made it luminous, and device can be used under the condition of the low light level or dark.
Because the serial data of control processing device 3 output is the Transistor-Transistor Logic level of 0-5V, and 16 configurations of computer recording system is the serial line interface of RS-232C standard, and the electrical code of the two is inconsistent, can not directly carry out communication.For this reason, set up serial transceiver MAX202, by the serial port TXD output terminal of control processing device 3, by the asynchronous serial communication of transceiver implement device and computer recording system.
According to above design principle, the utility model adopts following program:
One. main program:
The function of main program is that each interface is carried out initialization: working method, the keyboard interrupt mode of alphanumeric display 19 and control processing device 3 serial ports is set and presets initial value etc. for storehouse, data-storing unit and tag unit.After finishing power-on self-test, read the current page number in the tag unit, pack into and show corresponding page or leaf content.By the relevant I/O mouth line of control processing device 3, control charges and discharge circuit charging, timer timing course, according to the relation of duration of charge with the water temperature of surveying, the control processing device carries out corresponding calculated to be handled, obtain current corresponding to confession/waste pipe in after the count value of water temperature, by lookup table mode, the water temperature result data that is preset at correspondence in the data-storing unit is extracted, be converted to ASCII character, on alphanumeric display 19, shown; And by RS-232 communication interface 25 output serial datas, then to charging and discharging circuit discharging, for the detection of next round is prepared.
Program is according to the determined alarm threshold value of key is set, regularly compare with current water temperature result data, whether inquiry unit is in state of alarm, if be in state of alarm, then make warning LED12 flicker, in the time of alarm sounding at 29 intermittence, by relay 6 controls, cut off the power supply of helium compressor 7 rapidly, reach the purpose of protection compressor; Alphanumeric display 19 flickers show " alarm meanwhile! Water temperature exceeds setting value! " information.Only after the result data of current water temperature was lower than alarm threshold value, control processing device 3 withdrawed from state of alarm just now.Return said process heavily again.
When receiving options button 15 or key 14 is set when sending interrupt requests, control processing device 3 will stop to carry out main program then remove to carry out interruption subroutine.After end of subroutine, the main program that the side gets back to original execution again works on.Main program adopts modular structure, and is independent mutually between each module.
Two. interrupt service routine:
By the KBI register of the muliple keyboards combination that control processing device 3 inside are had is set; make options button 15 or key 14 is set when being pressed; trigger each self-corresponding interruption respectively; enter this interrupt service routine; after closing interruption, keeping the scene intact; according to options button 15, the key 14 current states that set are set; replace original page number; from data memory, take out and the corresponding page or leaf of new page number content, so that in main program, supply/the demonstration switching of observation datas such as the resistance value of draining, temperature value, temperature approach or the setting of alarm threshold value.
After opening interruption, recovery scene, carry out the RETI instruction, interrupt turning back to main program.
Claims (4)
1, a kind of superconductor gravimeter helium compressor automatic monitoring device comprises: helium compressor, temperature transducer, alarm, communication interface, operation keyboard, computer recording system;
It is characterized in that this device is made up of following parts, its annexation is:
Temperature transducer A (1) links to each other with the input end that charges and discharge circuit A (4); Temperature transducer B (2) links to each other with the input end that charges and discharge circuit B (5); Charge and discharge the output terminal of circuit A (4), the output terminal that charges and discharge circuit B (5), reference voltage (9), options button (15), key (14) is set links to each other with the input end of control processing device (3) respectively; The output terminal of control processing device (3) links to each other with the input end of the input end of RS-232 communication interface (25), alphanumeric display (19), driver (8) respectively; The output terminal of RS-232 communication interface (25) links to each other with computer recording system (16); The output terminal of driver (8) links to each other with the input end of relay (6); The output terminal of relay (6) links to each other with report to the police indication (12) and alarm (29) with helium compressor (7) respectively.
2, by the described a kind of superconductor gravimeter helium compressor automatic monitoring device of claim 1, it is characterized in that driver (8) is made up of following elements, its annexation is:
Electric capacity (C0) links to each other with the base stage of triode (N1), and the emitter of triode (N1) links to each other with the base stage of triode (N2), and the emitter of triode (N2) links to each other with ground; + 5V power supply links to each other with an end of the REL1 coil winding of relay (6), and the other end of REL1 coil winding links to each other with the collector electrode of triode (N1, N2); Resistance (R0) is the biasing resistor of compound transistor (N1, N2); Diode (D1) and REL1 coil winding mutually and connect, diode (D2) and REL2 coil winding are mutually and connect.
3, by the described a kind of superconductor gravimeter helium compressor automatic monitoring device of claim 1, it is characterized in that relay (6) is made up of following elements, its annexation is:
Resistance (R9) links to each other with an end of REL2 coil winding, the other end of REL2 coil winding links to each other with ground, the other end of resistance (R9) links to each other with an end of REL1 coil winding, one end of inductance (L) links to each other with the anode of electric capacity (C9) and the other end of REL1 coil winding, the other end of inductance (L) and electric capacity (C8) and+the 5V power supply links to each other; The negative terminal of electric capacity (C8), electric capacity (C9) links to each other with ground.Diode (D2) and REL2 coil winding are mutually and connect.
4, by the described a kind of superconductor gravimeter helium compressor automatic monitoring device of claim 1, it is characterized in that charging and discharging circuit A (4), charge and discharge circuit B (5) and form by following elements respectively, its annexation is: an end of the resistance of temperature transducer (RT1), resistance (RT2) links to each other with+5V power supply, and the other end of resistance (RT1) links to each other with an end of electric capacity (C1) and resistance (R1); The other end of resistance (RT2) links to each other with an end of electric capacity (C2) and resistance (R2); And the other end of resistance (R1), resistance (R2) links to each other with two normal phase input ends (CIN1, CIN2) of control processing device (3) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03235144 CN2592898Y (en) | 2003-01-08 | 2003-01-08 | Automatic monitoring device of helium compressor for superconducting gravity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03235144 CN2592898Y (en) | 2003-01-08 | 2003-01-08 | Automatic monitoring device of helium compressor for superconducting gravity meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2592898Y true CN2592898Y (en) | 2003-12-17 |
Family
ID=33758084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03235144 Expired - Lifetime CN2592898Y (en) | 2003-01-08 | 2003-01-08 | Automatic monitoring device of helium compressor for superconducting gravity meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2592898Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183982A (en) * | 2011-03-15 | 2011-09-14 | 中国科学院测量与地球物理研究所 | Protective device for automatically monitoring and recording ambient temperature and humidity of superconductive gravimeter |
-
2003
- 2003-01-08 CN CN 03235144 patent/CN2592898Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183982A (en) * | 2011-03-15 | 2011-09-14 | 中国科学院测量与地球物理研究所 | Protective device for automatically monitoring and recording ambient temperature and humidity of superconductive gravimeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20050420 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20050420 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |