CN2255596Y - Cold-chain temp. monitoring recording controlling instrument - Google Patents

Abstract

The utility model relates to a cold-chain temperature control instrument for monitoring recording, which belongs to the field of the electronic technology of computers. The utility model realizes the automatic measurement and display of temperature, random print, timing print, overtemperature limiting print, temperature reverting and limiting print for years, months, dates, hours and minutes, device path numbers, temperature scales overtemperature limiting sound and light alarms and the overtemperature limiting control of the 8 paths for each section of vaccine storing devices of the 16 paths of a cold chain; 220V alternating current or 9V to 12V direct current can be used for power supply; the uninterrupted power supply of the utility model can also be used for power supply. The main technology of the utility model is characterized in that the utility model is composed of a sampling circuit of temperature sensors, a microcomputer circuit, a display circuit of digital code tubes, a display circuit of light emitting diodes, a keyboard circuit, a printed circuit, a control circuit and a power source.

Description

The temperature Monitoring in Cold Chain recording controller

The utility model relates to a kind of temperature Monitoring in Cold Chain recording controller, belong to being used for human and animal's vaccine, from producing the vaccine finished product, through the intermediate transportation process, the computer electronic technology field that the refrigeration storage temperature of each link is monitored, write down and controls before using to the end.

Known to the applicant, and, there is not to find identical therewith invention through the information inquiry.The vaccine that is used for human and various animals, from producing the vaccine finished product, through the intermediate transportation process, each link all must be within certain refrigerated storage temperature scope before using to the end, vaccine exceeds the reserve temperature range certain hour, vaccine will lose efficacy, use the vaccine that lost efficacy to bring harm to the human and animal, and being done crash handling, spendable vaccine can cause economic loss, whether vaccine is effectively relevant with each link storage temperature of cold chain, in addition, the cold chain reserve temperature range difference of different vaccines requirements.Vaccine just is in the cold storage environment, or does not have the temperature observation record in each link at present, or just with thermometer observation, temperature is not monitored automatically, does not have automatic temperature-adjusting record regularly, not to preserving the automatic temperature-adjusting control of vaccine equipment.

The purpose of this utility model, provide a kind of temperature Monitoring in Cold Chain recording controller, can be simultaneously to the equipment of 16 tunnel storage vaccines, according to the different refrigerated storage temperature scopes of storage vaccine requirement, automatically measure, show, write down printing, to 8 the tunnel carrying out temperature and control automatically in 16 the tunnel.The utility model has power-fail detection circuit; uninterrupted power source with charging and defencive function and voltage stabilizing output is arranged; available 220V AC-powered; 9 to 12V powered by direct current on the also available refrigerator car; when can and not have external direct current, by uninterrupted power source power supply carrying out temperature monitoring in AC outage yet.

The purpose of this utility model is achieved in that microcomputer passes through data/address bus, address bus, control bus, I/O mouth, links to each other respectively with analog to digital conversion circuit, data memory, charactron display circuit, light emitting diode display circuit, keyboard circuit, control circuit, print circuit, sound alarm circuit, power-fail detection circuit.No. 16 temperature sensors in the temperature sensor sampling circuit connect in the on-off circuit two 8 and select 1 analog switch input, and output termination analog-digital converter is received microcomputer by bus.Microcomputer is by the control of the realization of the program among the EPROM of operation own to the each several part circuit.Power circuit and uninterrupted power supply circuit are received microcomputer and each circuit, supply with working power.By pressing key assignments from date and time of keyboard circuit, set the upper limit value and lower limit value and the timed print time interval of each road temperature range respectively, these numerical value of setting leave among the RAM of microcomputer, and show on the charactron of display circuit.When the temperature sensor on a certain road inserted in the microcomputer circuit in 16 the tunnel, corresponding road light emitting diode was bright in the light emitting diode display circuit, showed this road connection, can thermometric.Temperature sensor is put into the equipment of storage vaccine, the measured temperature value shows on charactron, and and the temperature upper limit value and lower limit value that is stored in the corresponding road of having set in the data memory relatively, when the measured temperature value surpasses the temperature upper limit value and lower limit value of setting, microcomputer sends signal for sound alarm circuit and light emitting diode display circuit, make sound alarm circuit send chimes of doom, make corresponding road LED flash luminous, transfinite to show measured temperature.Simultaneously the overtemperature limited signal is delivered to the input that a slice in the control circuit can be controlled 8 tunnel eight d type flip flops simultaneously, by address bus gating eight d type flip flops, make signal latch in eight d type flip flops, the drive circuit of its output drives overtemperature limit road relay, carries out control.The overtemperature limited signal is also received print circuit, carries out super temp-limitable printing, treats rewarming in limited time, and the overtemperature limited signal disappears and carries out the printing of rewarming limit.By the printing function key of keyboard circuit, give microcomputer the random printing signal through bus, pass through bus and I/O mouth again, control printer driver circuit, but random printing temperature sensor measurement, charactron temperature displayed value.Compare through the timed print time interval value of microcomputer to running time and setting, when two values equated, microcomputer was sent signal to printer driver circuit, carries out the temperature value that timed print is surveyed.The resistance of receiving an I/O mouth of microcomputer constitutes power-fail detection circuit, detects supply voltage, to have judged whether the 220V alternating current.Power circuit successively via receiving the voltage-stablizer input behind transformer, rectifier, the wave filter, is supplied with each circuit power after the voltage-stablizer voltage stabilizing when the 220V AC power is arranged.When powering with external direct current power supply, external direct current is just being terminated to an anode that prevents direct current refluence diode, the negative terminal of diode connects the input of power regulator, through voltage-stablizer supply circuit power supply.For providing the battery positive voltage of power supply, circuit connects the emitter stage that output voltage is adjusted triode in the uninterrupted power supply circuit, colelctor electrode connects the working power voltage output, base stage connects the colelctor electrode of a voltage amplifying tube through resistance, the base stage of voltage amplifying tube connects the output of mu balanced circuit voltage comparator, the positive input terminal of mu balanced circuit voltage comparator connects the Zener diode negative electrode that is made of reference voltage Zener diode through resistance, negative input end connects the mid point of voltage output end output voltage sampling potentiometer through resistance, output sampling voltage and reference voltage are through the mu balanced circuit voltage comparator relatively, by the differential pressure after the comparator output terminal output relatively, through voltage amplification and adjustment, the power supply voltage stabilizing output that provides by battery is provided, carries out temperature monitoring for other circuit except that control circuit and print circuit provides power supply V2.The negative input end of battery under-voltage protection voltage comparator connects the negative electrode that the reference voltage Zener diode is provided; the mid point of positive input termination battery output voltage sampling potentiometer; output connects the base stage that output voltage is adjusted pipe through the triode voltage amplification; when battery is under-voltage; the voltage of delivering to under-voltage voltage comparator positive input terminal through the output voltage sampling potentiometer is lower than the reference voltage of negative input end; the adjustment pipe is ended; battery positive voltage and power supply circuits disconnect, and the protection battery is no longer to circuit supply.The 220V alternating voltage is through transformer; behind the rectifier; receive a voltage-reg-ulator tube emitter stage that charges a battery by a resistance; colelctor electrode connects battery positive voltage through a forward diode; be used to avoid the voltage comparator positive input termination of accumulator super-charge to constitute the Zener diode negative electrode of reference voltage; negative input end connects the mid point of battery output voltage sampling potentiometer; when the overtension that charges a battery; voltage comparator negative input end voltage is during greater than the reference voltage of positive input terminal; the voltage comparator output signal of receiving charging adjustment pipe base stage is ended charging adjustment pipe; isolate battery charging circuit, the protection battery is not overcharged.

Because adopt such scheme, the utility model has following advantage and good effect:

Can the equipment of 16 tunnel storage vaccines design temperature scope upper and lower limit respectively be realized automatic measurement, demonstration, the records of 16 tunnel storage vaccine device temperatures are printed, to wherein 8 the tunnel carrying out temperature control, with the temperature environment that guarantees that vaccine is stored.But random printing, timed print, super temp-limitable printing, rewarming limit are printed, and have realized perfect print record function.Warning function is complete, not only acoustic alarm during temperature over-range, and LED flash is luminous, indicates the overtemperature limit.Be not only applicable to Alternating Current Power Supply and direct current supply, and can not having under the condition of external power supply by uninterrupted power source power supply carrying out temperature monitoring.Uninterrupted power source has the charging of pair battery and holding circuit to avoid that the overcharging of battery had under-voltage protecting circuit, avoids battery overdischarge, guarantees the service life of battery, and mu balanced circuit is arranged, and voltage is stable during the power supply.Because the microcomputer software support is arranged, hardware configuration is simple, and diverse in function is reliable and stable.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a theory diagram of the present utility model.

In Fig. 1, microcomputer (3) links to each other respectively with analog to digital conversion circuit (6), data memory (7), charactron display circuit (8), light emitting diode display circuit (9), keyboard circuit (10), control circuit (11), print circuit (12), sound alarm circuit (13), power-fail detection circuit (14) by data/address bus, address bus, control bus, I/O mouth.No. 16 temperature sensors connect in the on-off circuit (5) two 8 and select 1 analog switch input in the temperature sensor sampling circuit (4), and output termination analog to digital conversion circuit (6) is received microcomputer (3) by bus.Microcomputer (3) is by the control of the realization of the program among the EPROM of operation own to the each several part circuit.Power circuit (1) and uninterrupted power supply circuit (2) are received each circuit, supply with working power V1, V2.

Fig. 2 is the circuit theory diagrams of the utility model temperature Monitoring in Cold Chain recording controller, in conjunction with as follows to implementation of the present utility model:

Power circuit (1) is by transformer B, rectifier bridge D1, and filter capacitor C1, C2, C3, C4, voltage-stablizer IC1, and 2 prevent that direct current refluence diode d1, d8 from forming.When the 220V alternating current is arranged, provide working power V1, V2 through rectification, filtering, voltage stabilizing.The place that on refrigerator car, does not have the 220V alternating current, with on the refrigerator car or other external 9 to 12V direct currents be connected on the positive pole that prevents direct current refluence diode d8, the negative pole of d8 connects voltage-stablizer IC1 input, provides working power V1, V2 through voltage-stablizer IC1.

Uninterrupted power supply circuit (2) comprises battery E, mu balanced circuit, charge in batteries and holding circuit, battery under-voltage protecting circuit.When the 220V alternating current is arranged, through transformer B, rectifier bridge D2, with external 9 to 12V dc sources the time, dc source is just terminating on the tie point that prevents the anodal and d8 positive pole of direct current refluence diode d7, the d8 negative pole is connected on voltage-stablizer IC1 input, power supply is provided for power circuit (2) through IC1.When not having external AC and DC power supply; power supply is provided for power circuit (2) by battery E; be attempted by the V2 output of power circuit after diode d2, resistance R 1, the electrochemical capacitor C7 serial connection; Zener diode dw is attempted by on the C7; and be connected on mu balanced circuit voltage comparator ic 2-1 positive input terminal and battery under-voltage protection voltage comparator ic 2-2 negative input end through R4; be connected on through R19 and avoid the accumulator super-charge voltage ratio than device IC2-3 positive input terminal, for voltage comparator provides reference voltage.Mu balanced circuit is adjusted triode T1 by output voltage, voltage amplification triode T2, mu balanced circuit voltage comparator ic 2-1, output voltage sampling potentiometer W1, resistance R 2, R3, R4, R5, R6, R7, R8, capacitor C5, C6 forms, after R2 and the W1 serial connection and at V2 output two ends, the W1 mid point is connected in the IC2-1 negative input end through R3, between IC2-1 negative input end and output and meet R5, the IC2-1 output is linked the T2 base stage through R6, and the T2 emitter stage is through T3 ground connection, and the T2 colelctor electrode connects the T1 base stage through R7, connect T1 emitter stage and battery E positive pole through R8, the T1 colelctor electrode connects the V2 positive output end.Battery E charging and holding circuit have battery E; triode T6; charge in batteries voltage-reg-ulator tube T7; avoid the accumulator super-charge voltage ratio than device IC2-3; battery output voltage sampling potentiometer W3; resistance R 16; R17; R18; R19; R20; isolating diode d3 forms, T5; R16; after the W3 serial connection and at the E two ends, the W3 mid point connects the IC2-3 negative input end; between IC2-3 positive input terminal and output and meet R20; the IC2-3 output connects the T6 base stage through R17, the T6 grounded emitter, and colelctor electrode connects the T7 base stage through R18; the T7 emitter stage connects rectifier bridge D2 direct current positive output end through R21, and colelctor electrode connects the E positive pole through d3.Battery E under-voltage protecting circuit is by triode T3; T4; T5; battery under-voltage protection voltage comparator ic 2-2; battery output voltage sampling potentiometer W2; resistance R 9; R10; R11; R12; R13; R14; R15; R16 forms; between IC2-2 positive input terminal and output and meet R10; positive input termination W2 mid point; W2 one end ground connection, the other end connects the T5 colelctor electrode through R16, and the T5 base stage connects the E positive pole through R14; the IC2-2 output connects the T3 base stage through R9; the T3 grounded emitter, the T3 colelctor electrode connects the T2 emitter stage, and the IC2-2 input connects the T4 base stage through R11 simultaneously; the T4 grounded emitter, colelctor electrode is through R15; R14 connects the E positive pole.

Temperature sensor sampling circuit (4) is made up of the IC4 temperature sensor AD 590, sensor is placed on temperature-sensitive in the equipment of preserving vaccine, the positive termination power V2 of road IC4-1 sensor in 8 tunnel, negative terminal connects on-off circuit IC5-1 input, and connection is identical therewith for No. 7 sensors in addition.The positive termination power V2 of one road IC4-9 sensor in 8 tunnel in addition, negative terminal connects the input of on-off circuit IC5-2, and connection is identical therewith for No. 7 sensors in addition.Can insert No. 16 sensors altogether.

On-off circuit (5) selects 1 analog switch CD4051 IC5-1 and IC5-2 to form by two 8, three bit address of IC5-1, IC5-2 select three output lines of line and IC8-1 eight d type flip flops to link to each other, sheet choosing end links to each other with the I/O mouth of IC3 respectively, by IC3 through program gating IC5-1 or IC5-2, select a road of signal gating IC4 by three bit address again, by one road IC4 of gating the temperature parameter that records is passed through IC5, behind the wave filter that L, C form, receive analog to digital conversion circuit (6) again.

Analog to digital conversion circuit (6) is made up of 12 A/D ICL7109 of IC6, input links to each other with the selection output of on-off circuit IC5 through L, C filter circuit, output links to each other with microcomputer (3) by bus, by the analog-to-digital conversion of program realization to 16 drive test temperature sensor signals.

Data memory (7) is made up of IC7 CMOS static RAM (SRAM) 6264, deposits with 16 road temperature values of machine testing and date, time numerical value, and IC7 links to each other with IC3 by bus.

Microcomputer (3) is made up of IC3 one chip microcomputer 87C51, by data/address bus, address bus, control bus, I/O mouth, link to each other respectively with analog to digital conversion circuit (6), data memory (7), charactron display circuit (8), Light-Emitting Diode display circuit (9), keyboard circuit (10), control circuit (11), print circuit (12), sound alarm circuit (13), power-fail detection circuit (14).The program that IC3 stores by the EPROM of execution own realizes the control to the each several part circuit, the RAM of IC3 deposit setting 16 the tunnel on, lower-limit temperature value, on the temperature of program with the temperature value that records and corresponding way, lower limit relatively, send control signal for when realizing temperature over-range control circuit (11), send acoustic alarm signal for sound alarm circuit (13), send the visual alarm that makes LED flash luminous for light emitting diode display circuit (9), send print signal, date printed for print circuit (12), time, overtemperature limit device number and temperature value.

A slice IC8-1 eight d type flip flop 74LS377 are arranged in the charactron display circuit (8), two eight Bits Serial inputs of IC8-2, IC8-3/parallel Output Shift Register 74LS164,8 are total to the anode charactron, the input of IC8-1 links to each other with IC3 by data/address bus, address bus, control bus, article one, output line is received the base stage of triode T8, T9 respectively by resistance R 22, R23, the emitter stage of T8, T9 meets power supply V2, colelctor electrode connects the position choosing end of two charactrons respectively, three output lines in addition of IC8-1 and the connection of other 6 charactron position choosing ends, connection is identical therewith.The input data line of IC8-2, IC8-3 and control line connect the I/O mouth of IC3 respectively, the output line of IC8-2 connects one of 8 sections of 4 charactrons that 8 sections correspondences link to each other section by resistance R 24,7 output lines in addition of IC8-2 connect these 4 charactrons in addition 7 sections connection is identical therewith.The output line of IC8-3 connects one of 8 sections of the continuous charactrons of other 48 sections correspondences section by resistance R 25, other 7 output lines connect 7 sections in addition of these 4 charactrons, and connection is identical therewith.

R26, R27 resistance are arranged, two triodes of T10, T11,16 light emitting diodes in the light emitting diode display circuit (9).The emitter stage of T10, T11 meets power supply V2, base stage connects the end of R26, R27 respectively, after connecting together, the other end of R26, R27 is connected on the output line of IC8-1 eight d type flip flop 74LS377, the positive pole of light emitting diode d4 connects the colelctor electrode of T10, negative pole connects the output line of IC8-2 shift register 74LS164 by R24, the positive pole of 7 light emitting diodes is connected on the colelctor electrode of T10 equally jointly with d4 in addition, negative pole is connected on other 7 output lines of IC8-2 by resistance respectively, and is identical with the d4 connection.The positive pole of light emitting diode d5 connects the colelctor electrode of T11, negative pole connects the output line of IC8-3 shift register 74LS164 by R25, in addition on the same colelctor electrode that is connected on T11 jointly of the positive pole of 7 light emitting diodes with d5, negative pole is connected on other 7 output lines of IC8-3 by resistance respectively, and is identical with the d5 connection.When the temperature sampling circuit sensor is received in the circuit, IC3 carries out display routine, the signal of sending makes the lumination of light emitting diode that indicates corresponding road number, the light emitting diode that does not insert the corresponding road of sensor number does not work, detect in 16 the tunnel arbitrary pipeline equipment temperature overtemperature in limited time in program, the LED flash on corresponding road number is luminous, to show the overtemperature limit.

Keyboard circuit (10) is made up of IC8-1 eight d type flip flop 74LS377 and AJ1, AJ2, AJ3, AJ4, an AJ55 button, one end of 5 keys is received respectively on 5 output lines of IC8-1, the common port of 5 keys is received on the I/O mouth of IC3 together, by button set respectively 16 tunnel temperature on, the lower limit and the timed print time interval, set from date and time, select temperature value, date or the Hour Minute Second of display device.

The input of IC10 eight d type flip flop 74LS377 in the control circuit (11); link to each other with IC3 by data/address bus, address bus, control bus; one of 8 outputs output connects the T12 transistor base by resistance R 28; the T12 emitter stage meets power supply V1; colelctor electrode connects control relay J coil one end; the other end ground connection of J, J two ends also meet a protection diode d6, and other 7 outputs of IC10 are identical therewith with the connection of other No. 7 control relays.Prescribe a time limit when program detects the equipment overtemperature, IC3 sends control signal connects relay J, carries out control.

Power-fail detection circuit (14) is made up of resistance R 29, and when the 220V AC outage and when not having 9 to 12V direct currents to insert, the V1 supply voltage that meets IC3 through R29 is 0V.After IC3 detected the signal that the V1 power supply is 0V, display circuit (8) and (9) were though meet the V2 of uninterrupted power source power supply, and the program that IC3 carries out does not show display circuit (8) and (9), only showed for 5 seconds by display key the time.

Sound alarm circuit (13) is by resistance R 30, and triode T13 and buzzer Y form.I/O mouth of IC3 connects the T13 transistor base through R30, and the T13 emitter stage meets power supply V2, and colelctor electrode is through buzzer Y ground connection.Arbitrary pipeline equipment temperature surpasses temperature in limited time in 16 the tunnel, and the I/O mouth that program is joined IC3 and R30 is sent low level, the T13 conducting, and buzzer sends chimes of doom.

Print circuit (12) comprises Electric Machine Control and prints the eedle drive circuit, and circuit for controlling motor is by resistance R 31, triode T14, T15, and motor M and protection diode d10 form.I/O mouth of IC3 connects the T14 base stage by R31; the T14 emitter stage connects the T15 base stage; the T15 emission meets power supply V1; the colelctor electrode of T14, T15 connects together and connects an end of motor M; M other end ground connection; the M two ends also meet protection diode d10, and when program detected print signal, the I/O mouth was sent the signal that motor is rotated.Print the eedle drive circuit by resistance R 32, triode T16, T17 print eedle drive coil L1, and coil protect diode d11 forms.I/O mouth of IC3 connects the T16 base stage by R32, and the T16 emitter stage connects the T17 base stage, and the T17 emitter stage meets power supply V1, after connecting together, T16, T17 colelctor electrode connect to print eedle drive coil L1 one end, and L1 other end ground connection, the L1 two ends also meet diode d11.Printer has 4 print needles, and the drive circuit of 3 print needles is identical with the drive circuit of this root in addition, is connected on other 3 I/O mouths of IC3, is rotated the print needle action by program controlled motor.

Claims (7)

1. temperature Monitoring in Cold Chain recording controller, it is characterized in that microcomputer (3) passes through data/address bus, address bus, control bus, the I/O mouth, with analog to digital conversion circuit (6), data storage (7), charactron display circuit (8), light emitting diode display circuit (9), keyboard circuit (10), control circuit (11), print circuit (12), sound alarm circuit (13), power-fail detection circuit (14) links to each other respectively, No. 16 temperature sensors connect in the on-off circuit (5) two 8 and select 1 analog switch input in the temperature sensor sampling circuit (4), output termination modulus revolving die circuit (6), receive microcomputer (3) by bus, microcomputer (3) is measured demonstration by the program among the EPROM of operation own automatically to the temperature of 16 tunnel refrigeration vaccine equipment, random printing, timed print, super temp-limitable printing and the rewarming date printed of prescribing a time limit, time, device number and temperature value, 8 pipeline equipments are wherein carried out temperature control, power circuit (1) and uninterrupted power supply circuit (2) are received each circuit, supply with working power V1, V2, available 220V Alternating Current Power Supply or with external 9 to 12V direct current supplys and there is not external friendship, under the dc source situation, by uninterrupted power source power supply carrying out temperature monitoring.

2. temperature Monitoring in Cold Chain recording controller according to claim 1; it is characterized in that described uninterrupted power supply circuit (2); comprise battery E; mu balanced circuit; charge in batteries and holding circuit; the battery under-voltage protecting circuit; when the 220V alternating current is arranged; through transformer B; rectifier bridge D2; with external 9 to 12V dc sources the time; dc source is just terminating to and is preventing on direct current refluence diode d7 positive pole and the anodal tie point of d8; the d8 negative pole is received voltage-stablizer IC1 input; power supply is provided for power circuit (2) through IC1; there be not external friendship; during dc source; working power is provided for power circuit (2) by battery E; diode d2; resistance R 1; be attempted by power circuit V2 output after the electrochemical capacitor C7 serial connection; Zener diode dw is attempted by on the C7; and be connected on the positive input terminal of mu balanced circuit voltage comparator ic 2-1 through R4; be connected on the negative input end of battery under-voltage protection voltage comparator ic 2-2; be connected on through R19 and avoid the positive input terminal of accumulator super-charge voltage ratio than device IC2-3; for voltage comparator provides reference voltage; adjust triode T1 by output voltage; voltage amplifying tube T2; voltage comparator ic 2-1; output voltage sampling potentiometer W1; resistance R 2; R3; R4; R5; R6; R7; R8; capacitor C5; C6 forms mu balanced circuit; by triode T6; charge in batteries voltage-reg-ulator tube T7; voltage comparator ic 2-3; battery output voltage sampling potentiometer W3; resistance R 16; R17; R18; R19; R20; isolating diode d3 forms charging and the holding circuit of battery E; by triode T3; T4; T5; voltage comparator ic 2-2; battery output voltage sampling potentiometer W2, resistance R 9; R10; R11; R12; R13; R14; R15; R16 forms the under-voltage protecting circuit of battery E.

3. temperature Monitoring in Cold Chain recording controller according to claim 1, it is characterized in that described microcomputer (3) passes through data/address bus by IC3 one chip microcomputer 87C51, address bus, control bus, the I/O mouth, connect analog to digital conversion circuit (6) respectively, data memory (7), charactron display circuit (8), light emitting diode display circuit (9), keyboard circuit (10), control circuit (11), print circuit (12), sound alarm circuit (13), power-fail detection circuit (14), pass through hardware and software, to 16 the tunnel at random the detected temperatures value show, timed print, and and set deposit in the 87C51 internal RAM 16 the tunnel on, lower-limit temperature value compares, the automatic in limited time sound of overtemperature, light is reported to the police, and record is printed and control.

4. temperature Monitoring in Cold Chain recording controller according to claim 1, it is characterized in that triode T10 in the described light emitting diode display circuit (9), the emitter stage of T11 meets V2, base stage is connecting resistance R26 respectively, the end of R27, R26, after connecting together, the other end of R27 is connected on the output line of IC8-1 eight d type flip flop 74LS377, T10, the colelctor electrode of T11 respectively with light emitting diode d4, the positive pole of d5 links to each other, d4, the negative pole of d5 is respectively by resistance R 24, R25 meets IC8-2, the output of IC8-3 shift register 74LS164, when the temperature sampling sensor is received in the circuit, the IC3 performing a programme makes the lumination of light emitting diode on corresponding road number, surpass on the temperature of having set in the temperature that detects arbitrary pipeline equipment in 16 tunnel, down in limited time, it is luminous to make the light emitting diode on corresponding road number dodge gravel by program.

5. temperature Monitoring in Cold Chain recording controller according to claim 1; the input that it is characterized in that IC10 eight d type flip flop 74LS377 in the described control circuit (11) links to each other with IC3 by data/address bus, address bus, control bus; output connects triode T12 base stage by resistance R 28; the T12 emitter stage meets power supply V1; collector connecting relay J coil one end; J coil other end ground connection; at J coil two ends and meet a protection diode d6; when detecting equipment, program surpasses temperature in limited time; IC3 sends control signal connects relay J, carries out control.

6. temperature Monitoring in Cold Chain recording controller according to claim 1, it is characterized in that described sound alarm circuit (13) is by resistance R 30, triode T13 and buzzer Y form, I/O mouth of IC3 connects the T13 transistor base through R30, and the T13 emitter stage meets power supply V2, and colelctor electrode is through buzzer Y ground connection, arbitrary pipeline equipment temperature surpasses temperature in limited time in 16 the tunnel, the I/O mouth output low level that program is joined IC3 and R30, the T13 conducting, buzzer sends chimes of doom.

7. temperature Monitoring in Cold Chain recording controller according to claim 1, it is characterized in that print circuit (12) comprises Electric Machine Control and prints the eedle drive circuit, circuit for controlling motor is by resistance R 31, triode T14, T15, motor M and diode d10 form, I/O mouth of IC3 connects the T14 base stage by R31, the T14 emitter stage connects the T15 base stage, and the T15 emitter stage meets power supply V1, T14, the colelctor electrode of T15 connects together and connects the end of M, M other end ground connection, the M two ends also meet d10, print the eedle drive circuit by resistance R 32, triode T16, T17, print eedle drive coil L1, diode d11 forms, and I/O mouth of IC3 connects the T16 base stage by R32, and the T16 emitter stage connects the T17 base stage, the T17 emitter stage meets power supply V1, T16, after connecting together, the T17 colelctor electrode connects L1 one end, L1 other end ground connection, and the L1 two ends also meet d11, rotate the print needle action by program controlled motor.

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