CN2662229Y - Combined standard curing case for concrete and cement mortar - Google Patents
Combined standard curing case for concrete and cement mortar Download PDFInfo
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- CN2662229Y CN2662229Y CN 200320129218 CN200320129218U CN2662229Y CN 2662229 Y CN2662229 Y CN 2662229Y CN 200320129218 CN200320129218 CN 200320129218 CN 200320129218 U CN200320129218 U CN 200320129218U CN 2662229 Y CN2662229 Y CN 2662229Y
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Abstract
The utility model relates to a combined concrete and cement mortar test block standard maintenance box, which is characterized in that the utility model comprises a plurality of maintenance boxes; a data collection module is arranged on each maintenance box assembly and is used to measure the temperature and humidity of the box and transfer the collected data to the main control unit through serial communication. The control output power interface circuit, which receives the control signal of calefaction device, humidity device and refrigeration device brought by the main control circuit through serial communication, is provided with the output terminals of the control output power interface circuit connected with the terminal of calefaction device, humidity device and refrigeration device of each box respectively. The utility model, which has the advantages of convenient use, high automatization degree and high control precision, can synchronously control 1 to 8 boxes assembly and also can be used to conserve concrete test block, mortar test block and cement test block.
Description
Technical field
The utility model relates to a kind of concrete test block standard curing device, particularly a kind of combined concrete and sand-cement slurry test-block standard curing case.
Background technology
In construction work, the accurate evaluation of the intensity of concrete and (cement) mortar, just can provide reliable foundation to construction work, the curing condition of concrete, mortar has direct relation to proof strength, the curing condition difference of curing concrete mortar, the discreteness of its proof strength is just big, and accuracy is just poor.So stipulate in the building test specification: it is that 20 ± 2 ℃, humidity carry out maintenance in the standard curing room more than 90% that the concrete of moulding and cement mortar specimen (piece) should be placed on temperature, it is that 20 ± 2 ℃, humidity carry out maintenance at 60～80% standard curing room that the mixed mortar test specimen should be put into temperature, and most engineering constructions scene does not have curing means in reality, and the concrete of moulding, mortar specimen can not in time deliver to testing laboratory and carry out standard curing, and the accuracy of the strength assessment of concrete, mortar is had a greatly reduced quality.And there are some easy curing means some working-yard, function singleness, and its compressor cooling needs a large amount of chemical substances, does not reach environmental requirement.At present, also have some curing means, adopt Single-chip Controlling, its function is still single.
Summary of the invention
The purpose of this utility model provides a kind of combined concrete and sand-cement slurry test-block standard curing case, technical matters to be solved is to make this curing box simultaneously can the curing concrete test block, again can the maintenance mortar specimen, cement specimen, and during maintenance to test block or test specimen control accuracy height.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
A kind of combined concrete and sand-cement slurry test-block standard curing case, has main control unit, the curing box assembly, the curing box assembly has casing and is located at the interior heating of casing, humidification, refrigerating plant, main control unit is by computer system, keyboard-display circuit, the serial communication interface level-conversion circuit constitutes, described computer system is by integrated circuit U1, U2, U3 constitutes, described keyboard-display circuit is by keyboard scan and display interface circuit U4, decoding scheme U5 and U6, display driver circuit U10 and U12, light-emitting diode display U11 constitutes, described serial communication interface level-conversion circuit is by integrated circuit U9, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7 constitutes, its technical scheme is that it has several curing box assemblies, each curing box assembly all has a temperature that is used to measure in the casing, humidity value also carries out serial communication with above-mentioned main control unit and gives the data acquisition module of main control unit with the data upload of gathering, and the terminal of the communication port of each data acquisition module all is connected with the terminal of the communication port of main control unit; Accept the control output power interface circuit of the control signal of heating in each casing that main control unit produces, humidification, refrigerating plant with serial communication mode, has the lead-out terminal that above-mentioned control signal is exported the operational data of the heating in each casing, humidification, refrigerating plant after its power amplification, the connection terminal of the heating in each casing, humidification, refrigerating plant is connected with the lead-out terminal of control output power interface circuit respectively, and the terminal of the communication port of control output power interface circuit all is connected with the terminal of the communication port of main control unit.
In the technique scheme, described curing box assembly can be 8.The data acquisition module of each above-mentioned curing box assembly band has is located at the temperature in the casing in this curing box assembly, moisture probe and operating circuit, described operating circuit has and temperature, the connection terminal J1 that moisture probe is connected, one chip microcomputer U13, external memory storage U14, crystal oscillator OSC1, capacitor C 2, resistance R 12 and resistance R 13, by module U15, resistance R 8, resistance R 9, resistance resistance R 10, the serial communication interface level-conversion circuit that resistance R 11 is formed, 1 pin of connection terminal J1 connects power Vcc, 15 pin of the 2 pin order sheet microcomputer U13 of connection terminal J1, the 3 pin ground connection of connection terminal J1, temperature, the data pin of moisture probe connects 2 pin of connection terminal J1,20 pin of one chip microcomputer U13 connect power Vcc, the 10 pin ground connection of one chip microcomputer U13,4 pin of one chip microcomputer U13,5 pin connect the pin of crystal oscillator OSC1 respectively, 2 pin of the 6 pin connection module U15 of one chip microcomputer U13 and 3 pin also pass through pull down resistor R13 ground connection, 1 pin of the 2 pin connection module U15 of one chip microcomputer U13,4 pin of the 3 pin connection module U15 of one chip microcomputer U13,1 pin of one chip microcomputer U13 connects the public connecting end of capacitor C 2 and resistance R 12, another termination power Vcc of capacitor C 2, the other end ground connection of resistance R 12,8 pin of module U15 connect power Vcc, the 5 pin ground connection of module U15,6 pin of module U15 are received power Vcc by pull-up resistor R8, and a terminal A ' of the back formation communication port of connecting with resistance R 10+, 7 pin of module U15 are by pull down resistor R9 ground connection, and another terminal B ' of the back formation communication port of connecting with resistance R 11-, 1 of external memory storage U14,2,3,4,7 pin ground connection, 8 pin of external memory storage U14 connect power Vcc, 9 pin of the 5 pin order sheet microcomputer U13 of external memory storage U14,8 pin of the 6 pin order sheet microcomputer U13 of external memory storage U14; The terminal A ' of the communication port of each data acquisition module+, B '-all is connected with terminal A+, the B-of the communication port of main control unit.Above-mentioned control output power interface circuit has by module U17, resistance R 15, resistance R 16, resistance R 17, the serial communication interface level-conversion circuit that resistance R 18 is formed, one chip microcomputer U16, respectively with 8 curing box assemblies in heating, humidification, 24 road power output unit U18 that the connection terminal of refrigerating plant is connected, and crystal oscillator OSC2, resistance R 19 and resistance R 20,40 pin of one chip microcomputer U16 connect power Vcc, the 20 pin ground connection of one chip microcomputer U16,18 pin of one chip microcomputer U16,19 pin connect the pin of crystal oscillator OSC2 respectively, 2 pin of the 13 pin connection module U17 of one chip microcomputer U16 and 3 pin also pass through pull down resistor R20 ground connection, 1 pin of the 10 pin connection module U17 of one chip microcomputer U16,4 pin of the 11 pin connection module U17 of one chip microcomputer U16,9 pin of one chip microcomputer U16 connect the public connecting end of capacitor C 3 and resistance R 19, another termination power Vcc of capacitor C 3, the other end ground connection of resistance R 19,8 pin of module U17 connect power Vcc, the 5 pin ground connection of module U17,6 pin of module U17 are received power Vcc by pull-up resistor R15, and the back of connecting with resistance R 17 constitutes a terminal A of communication port "+; 7 pin of module U17 are by pull down resistor R16 ground connection; and another terminal B of the back formation communication port of connect with resistance R 18 ", 1 pin of one chip microcomputer U16～8 pin, 21 pin～28 pin, 32 pin～39 pin are received respectively on the lead-out terminal of 24 road power output unit U18; The terminal A of the communication port of control output power interface circuit "+, B "-be connected with terminal A+, the B-of the communication port of main control unit.
The utility model structurally belongs to the small distributed control system, adopts the basic model of the upper and lower computer of centralized management, decentralised control: the data acquisition module of many concurrent workings is finished temperature, the humidity data collection in the casing in the curing box assembly respectively; And this data acquisition module and main control unit carry out serial communication, give main control unit with the data upload of gathering.Main control unit is handled the data that each data acquisition module transmits, store, and will be after the process computing to the control signal of the heating in each casing, humidification, refrigerating plant, mode with serial communication sends to control output power interface circuit, and control signal outputs to the operational data of the heating in each casing, humidification, refrigerating plant on its lead-out terminal after the power amplification of control output power interface circuit.Adopt RS-485 to communicate by letter between main control unit and each data acquisition module and the control output power interface circuit, realize the exchanges data between them.This system can realize the intellectuality control to a plurality of curing box assemblies, and each curing box assembly can be set different temperature, humidity desired value separately.
The utility model is because described curing box has the curing box assembly that several work alone simultaneously, it can control 1～8 curing box assembly simultaneously like this, can the curing concrete test block, again can the maintenance mortar specimen, cement specimen, easy to use, automaticity height, control accuracy height, its control accuracy of temperature reaches ± and 1 ℃, the control accuracy of humidity reaches ± RH5%.
The utility model is widely used in the concrete test block maintenance of engineering construction scene and testing laboratory, has both saved the traffic expense of the testing laboratory of going back, and has guaranteed concrete, mortar standard curing again, and the accuracy of concrete evaluation further is improved.
Description of drawings
Fig. 1 is a block scheme of the present utility model.
Fig. 2 is the structural representation of temperature, moisture probe in a curing box assembly of the present utility model and the data acquisition module.
Fig. 3 is the circuit theory diagrams of main control unit of the present utility model.
Fig. 4 is the circuit theory diagrams of a data acquisition module of the present utility model.
Fig. 5 is the schematic diagram of control output power interface circuit of the present utility model.
Embodiment
As shown in Figure 1 and Figure 2, the utlity model has 9,8 curing box assemblies of a main control unit, 8 data acquisition modules, a control output power interface circuit 10.Each curing box assembly has casing and is located at casing interior heating, humidification, refrigerating plant.Heating, humidification, refrigerating plant are prior art.Each curing box assembly all has one and is used to measure temperature in the casing, humidity value and carries out serial communication with above-mentioned main control unit 9 and give the data acquisition module of main control unit 9 with the data upload of gathering, and the terminal of the communication port of each data acquisition module all is connected with the terminal of the communication port of main control unit 9.Accept the control output power interface circuit 10 of the control signal of heating in each casing that main control unit 9 produces, humidification, refrigerating plant with serial communication mode, have above-mentioned control signal lead-out terminal with the operational data output of the heating in each casing, humidification, refrigerating plant after its power amplification.The connection terminal of the heating in each casing, humidification, refrigerating plant is connected with the lead-out terminal of control output power interface circuit 10 respectively.The terminal of the communication port of control output power interface circuit 10 all is connected with the terminal of the communication port of main control unit 9.As shown in Figure 1, label 13, label 23, label 33, label 43, label 53, label 63, label 73, label 83 are respectively the data acquisition module of 8 curing box assembly bands; Label 12, label 22, label 32, label 42, label 52, label 62, label 72, label 82 are respectively temperature, the moisture probe in 8 curing box assemblies.Label 11, label 21, label 31, label 41, label 51, label 61, label 71, label 81 are respectively heating, humidification, the refrigerating plant in curing box assembly 1, curing box assembly 2, curing box assembly 3, curing box assembly 4, curing box assembly 5, curing box assembly 6, case maintenance assembly 7, the curing box assembly 8.As shown in Figure 1 and Figure 2, be example with curing box assembly 1, curing box assembly 1 has casing 16 (containing heat-insulation layer) and is located at this casing interior heating, humidification, refrigerating plant 11.Heating, humidification, refrigerating plant 11 comprise heating arrangement (electric heating tube) 18, damping device (humidifier) 19, refrigerating plant (semiconductor cooler) 20.Label 17 is a tank.Temperature, moisture probe 12 is two digital temp probes, and one of them is a dry type, in order to the thermometric degree; Another is a wet type, and in order to the hygrometric degree, it is by gauze 14 parcels, and gauze 14 is located in the little water tank 15, is a wet cloth.Temperature, moisture probe 12 and data acquisition module 13 realize the temperature in the casing in the curing box assembly 1, humidity value collection, all the other and the like.
As Fig. 1, shown in Figure 3, main control unit 9 has main control unit and is made of computer system, keyboard-display circuit, serial communication interface level-conversion circuit.Described computer system is made of integrated circuit U1, U2, U3, described keyboard-display circuit is made of keyboard scan and display interface circuit U4, decoding scheme U5 and U6, display driver circuit U10 and U12, light-emitting diode display U11, and described serial communication interface level-conversion circuit is made of integrated circuit U9, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7.Computer system makes the interior temperature of each casing, moisture stable in setting range by the measurement and the control of software programming realization to the temperature in each casing, humidity.Can import the setup parameter of each curing box assembly by keyboard.The connection terminal that terminal A+, the B-of its communication port of main control unit carries out serial communication for it and 8 data acquisition modules and control output power interface circuit 10 is by the exchanges data between this communication port realization main control unit and other circuit.Label U8 is reception, the transmission control end of serial communication, and communication port is in accepting state when P17 is high level, and communication port is in transmit status when P17 is low level.
As Fig. 1, shown in Figure 4, the data acquisition module of each above-mentioned curing box assembly band has is located at temperature, moisture probe and the operating circuit in the casing in this curing box assembly.Described operating circuit has the serial communication interface level-conversion circuit of forming with temperature, connection terminal J1, the one chip microcomputer U13, external memory storage U14, crystal oscillator OSC1, capacitor C 2, resistance R 12 and the resistance R 13 that are connected of moisture probe, by module U15, resistance R 8, resistance R 9, resistance resistance R 10, resistance R 11.Present embodiment is 2 the digital temp probes that are connected in parallel at connection terminal J1 place, the data of 2 temp probes of one chip microcomputer U13 timing acquiring (1 dry type, 1 wet type), calculate the principle of relative humidity again according to wet-and-dry bulb thermometer, calculate rh value, and with temperature value and the humidity value that calculates, temporarily be stored in its internal RAM, when the system master unit is inquired about it, again data reported main control unit.External memory storage U14 is used to store the numbering of data acquisition circuit.Above-mentioned serial communication level-conversion circuit is used for the Transistor-Transistor Logic level of one chip microcomputer is become the RS485 fiduciary level.1 pin of connection terminal J1 connects power Vcc, 15 pin of the 2 pin order sheet microcomputer U13 of connection terminal J1, and the 3 pin ground connection of connection terminal J1, the data pin of temperature, moisture probe connects 2 pin of connection terminal J1.20 pin of one chip microcomputer U13 connect power Vcc, the 10 pin ground connection of one chip microcomputer U13,4 pin of one chip microcomputer U13,5 pin connect the pin of crystal oscillator OSC1 respectively, 2 pin of the 6 pin connection module U15 of one chip microcomputer U13 and 3 pin also pass through pull down resistor R13 ground connection, 1 pin of the 2 pin connection module U15 of one chip microcomputer U13,4 pin of the 3 pin connection module U15 of one chip microcomputer U13,1 pin of one chip microcomputer U13 connects the public connecting end of capacitor C 2 and resistance R 12, another termination power Vcc of capacitor C 2, the other end ground connection of resistance R 12.8 pin of module U15 connect power Vcc, the 5 pin ground connection of module U15,6 pin of module U15 are received power Vcc by pull-up resistor R8, and a terminal A ' of the back formation communication port of connecting with resistance R 10+, 7 pin of module U15 are by pull down resistor R9 ground connection, and another terminal B ' of the back formation communication port of connect with resistance R 11-.1,2,3,4, the 7 pin ground connection of external memory storage U14,8 pin of external memory storage U14 connect power Vcc, 9 pin of the 5 pin order sheet microcomputer U13 of external memory storage U14,8 pin of the 6 pin order sheet microcomputer U13 of external memory storage U14.The terminal A ' of the communication port of each data acquisition module+, B '-all is connected with terminal A+, the B-of the communication port of main control unit.
As Fig. 1, shown in Figure 5,24 road power output unit U18 that above-mentioned control output power interface circuit 10 has the serial communication interface level-conversion circuit be made up of module U17, resistance R 15, resistance R 16, resistance R 17, resistance R 18, one chip microcomputer U16, is connected with the connection terminal of heating, humidification, refrigerating plant in 8 curing box assemblies respectively, and crystal oscillator OSC2, resistance R 19 and resistance R 20.This serial communication interface level-conversion circuit is used to realize the mutual conversion between Transistor-Transistor Logic level and the RS485 fiduciary level.40 pin of one chip microcomputer U16 connect power Vcc, the 20 pin ground connection of one chip microcomputer U16,18 pin of one chip microcomputer U16,19 pin connect the pin of crystal oscillator OSC2 respectively, 2 pin of the 13 pin connection module U17 of one chip microcomputer U16 and 3 pin also pass through pull down resistor R20 ground connection, 1 pin of the 10 pin connection module U17 of one chip microcomputer U16,4 pin of the 11 pin connection module U17 of one chip microcomputer U16,9 pin of one chip microcomputer U16 connect the public connecting end of capacitor C 3 and resistance R 19, another termination power Vcc of capacitor C 3, the other end ground connection of resistance R 19.8 pin of module U17 connect power Vcc, the 5 pin ground connection of module U17,6 pin of module U17 are received power Vcc by pull-up resistor R15, and the back of connecting with resistance R 17 constitutes a terminal A of communication port "+.7 pin of module U17 are by pull down resistor R16 ground connection, and another terminal B of the back formation communication port of connect with resistance R 18 ".1 pin of one chip microcomputer U16～8 pin, 21 pin～28 pin, 32 pin～39 pin receive respectively 24 road power output unit U18 lead-out terminal on.The terminal A of the communication port of control output power interface circuit 10 "+, B "-be connected with terminal A+, the B-of the communication port of main control unit.Like this, control output power interface circuit 10 is by data that its communication port terminal A "+, B "-reception main control unit 9 transmits, after one chip microcomputer U16 handles, 24 I/O (Input, Output) line by itself outputs to 24 road power output unit U18, respectively heating, humidification, refrigerating plant in the casing in 8 curing box assemblies are controlled, realized constant temperature, the constant humidity control of each curing box assembly.
Above-mentioned data acquisition module 13,23,33,43,53,63,73,83 respectively the terminal A ' by its communication port+, on terminal A+, the B-of the communication port of B '-be connected to main control unit 9; On terminal A+, the B-of the communication port of the terminal A of control output power interface circuit 10 by its communication port "+, B "-be connected to main control unit 9.They constitute the communication link of TT﹠C system by cable.Above-mentioned each data acquisition module and the used power Vcc of control output power interface circuit are the 5V direct current.
With curing box assembly 1 is example, temperature, moisture probe 12 are connected to the input end (promptly the data pin of temperature, moisture probe connects 2 pin of connection terminal J1) of data acquisition module 13 by connection terminal J1, to temperature, moisture probe 12 sending controling instructions, dry type, wet type temperature value that temperature, moisture probe 12 are detected in the casing in the curing box assembly 1 are sent to data acquisition module 13 to data acquisition module with serial communication mode; After 13 pairs of data of process data acquisition module are handled, obtain temperature, humidity value in the casing in the curing box assembly 1.Be sent to main control unit 9 through communication port again, main control unit 9 compares by the setting value with curing box assembly 1, and after carrying out logical process, the running status of the heating in the decision curing box assembly 1 in the casing, humidification, refrigerating plant; And send the data to control output power interface circuit 10 by its communication port, after control output power interface circuit 10 receives data,, heating, humidification, the refrigerating plant of curing box assembly 1 are controlled by data are resolved.
Identical to the observing and controlling of other curing box assembly and curing box assembly 1.
Claims (4)
1, a kind of combined concrete and sand-cement slurry test-block standard curing case, has main control unit, the curing box assembly, the curing box assembly has casing and is located at the interior heating of casing, humidification, refrigerating plant, main control unit is by computer system, keyboard-display circuit, the serial communication interface level-conversion circuit constitutes, described computer system is by integrated circuit U1, U2, U3 constitutes, described keyboard-display circuit is by keyboard scan and display interface circuit U4, decoding scheme U5 and U6, display driver circuit U10 and U12, light-emitting diode display U11 constitutes, described serial communication interface level-conversion circuit is by integrated circuit U9, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7 constitutes, it is characterized in that: it has several curing box assemblies, each curing box assembly all has a temperature that is used to measure in the casing, humidity value also carries out serial communication with above-mentioned main control unit (9) and gives the data acquisition module of main control unit (9) with the data upload of gathering, and the terminal of the communication port of each data acquisition module all is connected with the terminal of the communication port of main control unit (9); Accept the interior heating of each casing that main control unit (9) produces with serial communication mode, humidification, the control output power interface circuit (10) of the control signal of refrigerating plant, have above-mentioned control signal after its power amplification with the heating in each casing, humidification, the lead-out terminal of the operational data output of refrigerating plant, heating in each casing, humidification, the connection terminal of refrigerating plant is connected with the lead-out terminal of control output power interface circuit (10) respectively, and the terminal of the communication port of control output power interface circuit (10) all is connected with the terminal of the communication port of main control unit (9).
2, curing box according to claim 1 is characterized in that: above-mentioned curing box assembly is 8.
3, curing box according to claim 2, it is characterized in that: the data acquisition module of each above-mentioned curing box assembly band has is located at the temperature in the casing in this curing box assembly, moisture probe and operating circuit, described operating circuit has and temperature, the connection terminal J1 that moisture probe is connected, one chip microcomputer U13, external memory storage U14, crystal oscillator OSC1, capacitor C 2, resistance R 12 and resistance R 13, by module U15, resistance R 8, resistance R 9, resistance resistance R 10, the serial communication interface level-conversion circuit that resistance R 11 is formed, 1 pin of connection terminal J1 connects power Vcc, 15 pin of the 2 pin order sheet microcomputer U13 of connection terminal J1, the 3 pin ground connection of connection terminal J1, temperature, the data pin of moisture probe connects 2 pin of connection terminal J1,20 pin of one chip microcomputer U13 connect power Vcc, the 10 pin ground connection of one chip microcomputer U13,4 pin of one chip microcomputer U13,5 pin connect the pin of crystal oscillator OSC1 respectively, 2 pin of the 6 pin connection module U15 of one chip microcomputer U13 and 3 pin also pass through pull down resistor R13 ground connection, 1 pin of the 2 pin connection module U15 of one chip microcomputer U13,4 pin of the 3 pin connection module U15 of one chip microcomputer U13,1 pin of one chip microcomputer U13 connects the public connecting end of capacitor C 2 and resistance R 12, another termination power Vcc of capacitor C 2, the other end ground connection of resistance R 12,8 pin of module U15 connect power Vcc, the 5 pin ground connection of module U15,6 pin of module U15 are received power Vcc by pull-up resistor R8, and a terminal of the back formation communication port of connecting with resistance R 10 (A '+), 7 pin of module U15 are by pull down resistor R9 ground connection, and another terminal of the back formation communication port of connecting with resistance R 11 (B '-), 1 of external memory storage U14,2,3,4,7 pin ground connection, 8 pin of external memory storage U14 connect power Vcc, 9 pin of the 5 pin order sheet microcomputer U13 of external memory storage U14,8 pin of the 6 pin order sheet microcomputer U13 of external memory storage U14; The terminal of the communication port of each data acquisition module (A '+, B '-) all be connected with the terminal (A+, B-) of the communication port of main control unit.
4, curing box according to claim 2, it is characterized in that: above-mentioned control output power interface circuit (10) has by module U17, resistance R 15, resistance R 16, resistance R 17, the serial communication interface level-conversion circuit that resistance R 18 is formed, one chip microcomputer U16, respectively with 8 curing box assemblies in heating, humidification, 24 road power output unit U18 that the connection terminal of refrigerating plant is connected, and crystal oscillator OSC2, resistance R 19 and resistance R 20,40 pin of one chip microcomputer U16 connect power Vcc, the 20 pin ground connection of one chip microcomputer U16,18 pin of one chip microcomputer U16,19 pin connect the pin of crystal oscillator OSC2 respectively, 2 pin of the 13 pin connection module U17 of one chip microcomputer U16 and 3 pin also pass through pull down resistor R20 ground connection, 1 pin of the 10 pin connection module U17 of one chip microcomputer U16,4 pin of the 11 pin connection module U17 of one chip microcomputer U16,9 pin of one chip microcomputer U16 connect the public connecting end of capacitor C 3 and resistance R 19, another termination power Vcc of capacitor C 3, the other end ground connection of resistance R 19,8 pin of module U17 connect power Vcc, the 5 pin ground connection of module U17,6 pin of module U17 are received power Vcc by pull-up resistor R15, and the back of connecting with resistance R 17 constitutes a terminal of communication port (A "+); 7 pin of module U17 are by pull down resistor R16 ground connection; and another terminal (B "), 1 pin of one chip microcomputer U16～8 pin of the back formation communication port of connect with resistance R 18,21 pin～28 pin, 32 pin～39 pin are received respectively on the lead-out terminal of 24 road power output unit U18; The terminal of the communication port of control output power interface circuit (10) (A "+, B "-) is connected with the terminal (A+, B-) of the communication port of main control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320129218 CN2662229Y (en) | 2003-12-24 | 2003-12-24 | Combined standard curing case for concrete and cement mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320129218 CN2662229Y (en) | 2003-12-24 | 2003-12-24 | Combined standard curing case for concrete and cement mortar |
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|---|---|
| CN2662229Y true CN2662229Y (en) | 2004-12-08 |
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| CN 200320129218 Expired - Fee Related CN2662229Y (en) | 2003-12-24 | 2003-12-24 | Combined standard curing case for concrete and cement mortar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106313293A (en) * | 2016-08-26 | 2017-01-11 | 山东省淮河流域水利管理局规划设计院 | Cement mortar maintaining box and maintaining method thereof |
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2003
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106313293A (en) * | 2016-08-26 | 2017-01-11 | 山东省淮河流域水利管理局规划设计院 | Cement mortar maintaining box and maintaining method thereof |
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