CN114326860A - Anti-surge dual-power locomotive temperature control system - Google Patents
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Abstract
The invention provides a surge-resistant dual-power locomotive temperature control system which comprises a main control module, a temperature monitoring module and a cooling module, wherein the temperature monitoring module is used for acquiring temperature data of a locomotive working environment, the main control module processes the temperature data and then outputs control parameters, and the cooling module starts to work according to the control parameters; the main control module comprises an anti-surge circuit and a dual-power circuit, the anti-surge circuit adopts a mode that three piezoresistors are connected in parallel to resist surge, in addition, a 110 v-to-12 v main power supply is used for double-circuit backup, one circuit is burnt out, a switch can be switched to a second circuit, the anti-surge circuit is added with the backup circuit, the service life is greatly prolonged, meanwhile, the control of the cooling module is realized through a dormancy instruction, a continuous working instruction and a pulse working instruction in the main control module, and the temperature is stably controlled to be in a proper area.
Description
Technical Field
The present disclosure relates generally to the field of production control, and more particularly to an anti-surge dual-power locomotive temperature control system.
Background
In industrial production, because motor work produces heat, can lead to the temperature rise of production environment, and some production environment are higher to ambient temperature's requirement, need control the temperature, and in prior art, the control of temperature is not accurate enough, and control module leads to the life-span not long because long-time work, needs carry out the circuit board replacement.
Now, many temperature control systems have been developed, and through extensive search and reference, it is found that the existing temperature control systems are disclosed as KR101686427B1, KR101716115B1, CN103742306B and KR101201550B1, and the systems comprise: the system comprises a heat exchange heat source pipeline, a locomotive warming pipeline, a heat exchanger, a circulating pump, a regulating valve and a main controller; the heat exchange heat source pipeline connects the static warming isolation heat exchange equipment of the diesel locomotive to the ground warming heat source main system, the locomotive warming pipeline is connected to a locomotive water system, and the heat exchange heat source pipeline and the locomotive warming pipeline are both connected to the heat exchanger; the locomotive heating pipeline is connected with a circulating pump; a communicating pipeline provided with a regulating valve is arranged between the heat exchange heat source pipeline and the locomotive heating pipeline; however, the control module of the system only has one power supply, and cannot work normally when the power supply fails, and the circuit does not take protection measures, so that the service life of the circuit is short, and meanwhile, the temperature reduction measure for the temperature is single, and the temperature stability cannot be realized in a cell.
Disclosure of Invention
The invention aims to provide an anti-surge dual-power locomotive temperature control system aiming at the defects,
the invention adopts the following technical scheme:
an anti-surge dual-power locomotive temperature control system comprises a main control module, a temperature monitoring module and a cooling module, wherein the temperature monitoring module is used for collecting temperature data of a locomotive working environment, the main control module processes the temperature data and then outputs a control instruction, and the cooling module starts working according to the control instruction;
the temperature monitoring module is combined with the main control module to obtain real-time temperature T (t), and the main control module sends three instructions according to the T (t):
when T (T) < T0+k·(T1-T0) When the main control module is in use, the main control module sends a sleep instruction;
when T (T) > T1-k·(T1-T0) When the system is used, the main control module sends a continuous working instruction;
when T is0+k·(T1-T0)≤T(t)≤T1-k·(T1-T0) The main control module sends a pulse working instruction;
wherein [ T0，T1]K is a temperature change coefficient for a suitable temperature interval.
The cooling module stops working under the sleep instruction, works at the highest cooling efficiency under the continuous working instruction, and works at different cooling efficiencies under the pulse working instruction;
the calculation formula of the temperature change coefficient k is as follows:
where T' (T) is the derivative of the function T (T), T0Is a starting time of a function T (t) in a first sleep state phase, t1For a function T (T) to reach T in a first sleep state0The termination time of (d);
the main control module comprises a single chip microcomputer and a dual-power circuit, the single chip microcomputer is used for executing the calculation operation, the dual-power circuit is internally provided with the anti-surge sub-circuit, and the anti-surge sub-circuit is used for reducing peak current generated at the moment of power supply connection;
further, the pulse instruction sent by the main control module is an instruction of a work instruction-sleep instruction cycle change, a ratio of the work instruction duration to the sleep instruction duration in one cycle is δ, and a calculation formula of δ is as follows:
wherein, Tx＝T0+k·(T1-T0) At a resting temperature, TW＝T1-k·(T1-T0) Is the working temperature;
furthermore, the main control module further comprises an input/output socket, an analog amplification circuit and a relay control circuit, wherein the input/output socket is used for connecting the temperature monitoring module and the cooling module, the analog amplification circuit is used for amplifying signals collected by the temperature detection module and then transmitting the signals to the single chip microcomputer for operation processing, and the relay control circuit is used for processing instructions sent by the main control module and controlling the work of the cooling module;
furthermore, the anti-surge sub-circuit is formed by connecting three parts in parallel, wherein the first part is formed by connecting a voltage stabilizing diode and a voltage dependent resistor in series, the second part is formed by connecting a voltage stabilizing diode and an inductor in series, and the third part is formed by connecting a polar capacitor and a non-polar capacitor in parallel;
further, the dual power supply circuit comprises two power supplies U1 and U2, the power supplies U1 and U2 each include 4 interfaces, a 220V positive electrode interface, a 220V negative electrode interface, a 12V output interface and a 0V output interface, wherein the 12V output interface is connected to the 12V output end through the forward direction of the diode, the 0V output interface is connected to the ground end through the reverse direction of the diode, the 220V positive electrode interface is connected to two interfaces of a three-terminal connector, the other interface of the three-terminal connector is connected to the power output positive electrode end of the input/output power strip interface through the reverse direction of the diode, and the 220V negative electrode interface is connected to the power output negative electrode end of the input/output power strip interface through the forward direction of the diode.
The beneficial effects obtained by the invention are as follows:
the main control module of the system is improved aiming at a power supply of a use environment, the power supply of the locomotive is seriously interfered, the anti-surge of the parallel connection of three paths of piezoresistors is adopted, in addition, the two paths of main power supplies are backed up, one path is burnt out, a switch can be switched to the second path, the anti-surge and backup circuit is added, the service life is greatly prolonged, meanwhile, the cooling module is controlled by the Zhu-Start module through outputting a dormancy instruction, a continuous working instruction and a pulse working instruction, and the pulse working instruction can reach different cooling effects according to the time length ratio delta, so that the accurate control of the environment temperature is realized.
For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description of the invention and accompanying drawings, which are provided for purposes of illustration and description only and are not intended to limit the invention.
Drawings
FIG. 1 is a schematic view of the overall structural framework of the present invention;
FIG. 2 is a schematic diagram of a structural framework of a main control module according to the present invention;
FIG. 3 is a schematic diagram of an anti-surge sub-circuit of the present invention;
FIG. 4 is a schematic diagram of the left portion of the analog amplification circuit of the present invention;
FIG. 5 is a schematic diagram of the right portion of the analog amplification circuit of the present invention;
fig. 6 is a schematic diagram of a relay control circuit according to the present invention.
Detailed Description
The following is a description of embodiments of the present invention with reference to specific embodiments, and those skilled in the art will understand the advantages and effects of the present invention from the disclosure of the present specification. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.
The first embodiment.
The embodiment provides a surge-resistant dual-power locomotive temperature control system, which is combined with fig. 1 and comprises a main control module, a temperature monitoring module and a cooling module, wherein the temperature monitoring module is used for acquiring temperature data of a locomotive working environment, the main control module processes the temperature data and then outputs a control instruction, and the cooling module starts working according to the control instruction;
the temperature monitoring module is combined with the main control module to obtain real-time temperature T (t), and the main control module sends three instructions according to the T (t):
when T (T) < T0+k·(T1-T0) When the main control module is in use, the main control module sends a sleep instruction;
when T (T) > T1-k·(T1-T0) The master control module sends continuous workInstructions;
when T is0+k·(T1-T0)≤T(t)≤T1-k·(T1-T0) The main control module sends a pulse working instruction;
wherein [ T0，T1]K is a temperature change coefficient for a suitable temperature interval.
The cooling module stops working under the sleep instruction, works at the highest cooling efficiency under the continuous working instruction, and works at different cooling efficiencies under the pulse working instruction;
the calculation formula of the temperature change coefficient k is as follows:
where T' (T) is the derivative of the function T (T), T0Is a starting time of a function T (t) in a first sleep state phase, t1For a function T (T) to reach T in a first sleep state0The termination time of (d);
the main control module comprises a single chip microcomputer and a dual-power circuit, the single chip microcomputer is used for executing the calculation operation, the dual-power circuit is internally provided with the anti-surge sub-circuit, and the anti-surge sub-circuit is used for reducing peak current generated at the moment of power supply connection;
the pulse instruction sent by the main control module is an instruction of a work instruction-sleep instruction cycle change, the ratio of the work instruction duration to the sleep instruction duration in one cycle is delta, and the calculation formula of the delta is as follows:
wherein, Tx＝T0+k·(T1-T0) At a resting temperature, TW＝T1-k·(T1-T0) Is the working temperature;
the main control module further comprises an input/output socket, an analog amplification circuit and a relay control circuit, the input/output socket is used for connecting the temperature monitoring module and the cooling module, the analog amplification circuit is used for amplifying signals collected by the temperature detection module and then transmitting the signals to the single chip microcomputer for operation processing, and the relay control circuit is used for processing instructions sent by the main control module and controlling the work of the cooling module;
the surge-resistant sub-circuit is formed by connecting three parts in parallel, wherein the first part is formed by connecting a voltage stabilizing diode and a voltage dependent resistor in series, the second part is formed by connecting a voltage stabilizing diode and an inductor in series, and the third part is formed by connecting a polar capacitor and a non-polar capacitor in parallel;
the dual power supply circuit comprises two power supplies U1 and U2, the power supplies U1 and U2 are provided with 4 interfaces, a 220V positive electrode interface, a 220V negative electrode interface, a 12V output interface and a 0V output interface, wherein the 12V output interface is connected to a 12V output end in the forward direction through a diode, the 0V output interface is reversely connected to a grounding end through a diode, the 220V positive electrode interface is connected with two interfaces in a three-end connector, the other interface of the three-end connector is reversely connected to a power output positive electrode end in the input and output power socket, and the 220V negative electrode interface is connected to a power output negative electrode end in the input and output power socket in the forward direction through a diode.
Example two.
The embodiment includes the whole content of the first embodiment, and provides an anti-surge dual-power locomotive temperature control system which comprises a main control module, a temperature monitoring module and a cooling module, wherein the temperature monitoring module is used for collecting temperature data of a locomotive working environment, the main control module processes the temperature data and then outputs control parameters, and the cooling module starts working according to the control parameters;
the temperature monitoring module is combined with the main control module to detect a real-time temperature value T (T), and the proper working environment temperature interval of the locomotive is [ T0，T1]The main control module controls the cooling module to work to enable the detected temperature value T to be always in an interval [ T ]0，T1]Internal;
when T (T) < T0+k·(T1-T0) When the temperature is lowered, the main control module controls the cooling module to be in a dormant state;
when T (T) > T1-k·(T1-T0) When the temperature is lowered, the main control module controls the temperature lowering module to be in a continuous working state;
when T is0+k·(T1-T0)≤T(t)≤T1-k·(T1-T0) The main control module controls the cooling module to be in a pulse working state;
k is a temperature change coefficient and is obtained by processing according to the temperature change condition detected by the cooling module in the first dormancy state stage;
the calculation formula of the temperature change coefficient k is as follows:
where T' (T) is the derivative of the function T (T), T0Is a starting time of a function T (t) in a first sleep state phase, t1For a function T (T) to reach T in a first sleep state0The termination time of (d);
note Tx＝T0+k·(T1-T0) For the resting temperature, note TW＝T1-k·(T1-T0) Is the working temperature;
the main control module enables the cooling module to be in a pulse working state by sending a pulse instruction, the pulse instruction is a work instruction-sleep instruction periodic variation instruction, and the duration of one period is TcThe ratio of the working instruction duration to the sleep instruction duration in one cycle is δ, and the calculation formula of δ is as follows:
the more the value of the delta is close to 1, the higher the cooling efficiency of the cooling module is, the more the value of the delta is close to 0, and the lower the cooling efficiency of the cooling module is;
referring to fig. 2, the main control module includes an input/output socket, a dual power circuit, a single chip, an analog amplification circuit, a relay control circuit, and a voltage stabilizing circuit;
the input and output socket comprises three pairs of connecting interfaces, wherein the first pair is a power interface and is represented by (V110+, V110-) for providing 220V voltage, the power interface is connected with the dual-power circuit, the second pair is an input interface and is represented by (PT100+, PT100-) for connecting with the temperature monitoring module, and the third pair is an output interface and is represented by (FAN +, FAN-) for connecting with the relay circuit;
the dual-power circuit comprises two power supplies U1 and U2, wherein U1 is a main power supply, U2 is a standby power supply, the power supplies U1 and U2 both comprise 4 interfaces, a 220V positive electrode interface, a 220V negative electrode interface, a 12V output interface and a 0V output interface, wherein the 12V output interface is connected to a 12V output end in a forward direction through a diode, the 0V output interface is connected to a ground end in a reverse direction through a diode, the 220V positive electrode interface is connected with two interfaces in a three-terminal connector, the other interface of the three-terminal connector is connected to a V110+ end in the input and output power socket in a reverse direction through a diode, and the 220V negative electrode interface is connected to a V110-end in the input and output power socket in a forward direction through a diode;
referring to fig. 3, the dual power supply circuit further includes an anti-surge sub-circuit, which is connected between the power interfaces of the input/output socket, the anti-surge sub-circuit comprises three parts, wherein the first part is formed by connecting a voltage stabilizing diode and a voltage dependent resistor in series, wherein, the anode of the voltage stabilizing diode is connected with the V110+ end, the piezoresistor is connected with the V110-end, the second part is that a voltage stabilizing diode is connected with an inductor in series, wherein, the cathode of the voltage stabilizing diode is connected with the V110+ end, the inductor is connected with the V110-end, the inductance value is 100 muH, the third part is a polar capacitor and a non-polar capacitor which are connected in parallel, wherein, the anode of the polar capacitor is connected with the V110+ end, the cathode of the polar capacitor is connected with the V110-end, the capacitance value of the polar capacitor is 47 muF, and the capacitance value of the non-polar capacitor is 0.1F;
the voltage stabilizing circuit comprises a voltage stabilizing integrator, the voltage stabilizing integrator comprises an input interface, an output interface, a feedback interface, a grounding interface and a switch interface, the grounding interface is directly connected with the switch interface, the input interface is connected with a 12V output end, a 100 muH inductor is connected between the output interface and the feedback interface, a diode is connected between the output interface and the grounding interface, the anode of the diode is connected with the output interface, a 0.1F nonpolar capacitor and a 1000 muF electrolytic capacitor are connected between the feedback interface and the grounding interface, the nonpolar capacitor and the electrolytic capacitor are in parallel connection, and the anode of the electrolytic capacitor is connected with the feedback interface;
with reference to fig. 4 and 5, a dual operational amplifier is disposed in the analog amplifying circuit, a first non-inverting input terminal of the dual operational amplifier is connected to a reference voltage terminal, a voltage value of the reference voltage terminal is 4.09V, a first inverting input terminal of the dual operational amplifier is connected to a ground terminal through a series connection of resistors R2 and R3, the first inverting input terminal of the dual operational amplifier is connected to the PT100+ terminal of the input/output bank, a first output terminal of the dual operational amplifier is connected to the PT 100-terminal of the input/output bank, the PT100+ terminal is connected to a second inverting input terminal of the dual operational amplifier through a resistor R4, the PT 100-terminal is connected to a second non-inverting input terminal of the dual operational amplifier through a resistor R5, and a second non-inverting input terminal of the dual operational amplifier is connected to the ground terminal through a resistor R6, a resistor R7 is connected between a second inverting input end and a second output end of the double operational amplifier, the second output end of the double operational amplifier is connected to an analog signal input end through a resistor R8, the analog signal input end is connected with a grounding end through a voltage stabilizing diode and a non-polar capacitor which are connected in parallel, the anode of the voltage stabilizing diode is connected with the analog signal input end, the capacitance value of the non-polar capacitor is 0.1 muF, and the analog signal input end is connected with an analog signal interface of the single chip microcomputer;
a reference voltage end in the analog amplification circuit is provided by a controllable precise voltage-stabilizing source, a reference pole of the controllable precise voltage-stabilizing source is connected with a 12V output end by a resistor R1, a cathode of the controllable precise voltage-stabilizing source is connected with a grounding end, an anode of the controllable precise voltage-stabilizing source is connected with an adjusting end of an adjustable resistor R20, two resistor ends of the adjustable resistor R20 are respectively connected with the cathode of the controllable precise voltage-stabilizing source and the reference pole, and the reference pole of the controllable precise voltage-stabilizing source outputs reference voltage;
in the analog amplification circuit, R1 is 100 Ω, R2 is 1k Ω, R3 is 2.2k Ω, R4 is 47k Ω, R5 is 47k Ω, R6 is 470k Ω, R7 is 470k Ω, R8 is 1k Ω, and R20 is 5k Ω;
with reference to fig. 6, a relay is disposed in the relay control circuit, the positive detection input interface of the relay is connected to the 12V output terminal, the negative detection input interface of the relay is connected to the collector of an NPN transistor, a diode is connected between the positive detection input interface and the negative detection input interface of the relay, the anode of the diode is connected to the negative detection input interface, the cathode of the diode is connected to the positive detection input interface, the base of the transistor is connected to the relay output interface of the single chip microcomputer through a resistor R9, the base of the transistor is connected to the ground terminal through a resistor R10, and the emitter of the transistor is directly connected to the ground terminal;
the movable contact of the relay is connected with the cooling module, the normally closed contact of the relay is connected with an FAN-end, the FAN-end is connected with an FAN + end through a 0.1F capacitor, and the FAN + end is connected with the cooling module;
the temperature monitoring module comprises a pt100 thermal resistance sensor, electric signals at two ends of the temperature monitoring module enter the analog amplifying circuit through an input interface of the input/output socket, analog signals obtained after processing by the double-operational amplifier are input into the singlechip, and the singlechip processes the analog signals and outputs relay control signals;
the dual-power circuit and the voltage stabilizing circuit are used for providing a stable working voltage for the analog amplification circuit, and the anti-surge subcircuit in the dual-power circuit can reduce the peak current generated at the moment of power connection and prolong the service life of the main control module.
The disclosure is only a preferred embodiment of the invention, and is not intended to limit the scope of the invention, so that all equivalent technical changes made by using the contents of the specification and the drawings are included in the scope of the invention, and further, the elements thereof can be updated as the technology develops.
Claims (5)
1. The anti-surge dual-power locomotive temperature control system is characterized by comprising a main control module, a temperature monitoring module and a cooling module, wherein the temperature monitoring module is used for collecting temperature data of a locomotive working environment, the main control module processes the temperature data and then outputs a control instruction, and the cooling module starts working according to the control instruction;
the temperature monitoring module is combined with the main control module to obtain real-time temperature T (t), and the main control module sends three instructions according to the T (t):
when T (T) < T0+k·(T1-T0) When the main control module is in use, the main control module sends a sleep instruction;
when T (T) > T1-k·(T1-T0) When the system is used, the main control module sends a continuous working instruction;
when T is0+k·(T1-T0)≤T(t)≤T1-k·(T1-T0) The main control module sends a pulse working instruction;
wherein [ T0，T1]K is a temperature change coefficient for a suitable temperature interval.
The cooling module stops working under the sleep instruction, works at the highest cooling efficiency under the continuous working instruction, and works at different cooling efficiencies under the pulse working instruction;
the calculation formula of the temperature change coefficient k is as follows:
where T' (T) is the derivative of the function T (T), T0Is a starting time of a function T (t) in a first sleep state phase, t1For a function T (T) to reach T in a first sleep state0The termination time of (d);
the main control module comprises a single chip microcomputer and a dual-power circuit, the single chip microcomputer is used for executing the calculation operation, the dual-power circuit is internally provided with the anti-surge sub-circuit, and the anti-surge sub-circuit is used for reducing peak current generated at the moment of power supply connection.
2. The anti-surge dual-power locomotive temperature control system according to claim 1, wherein the pulse command sent by the main control module is a command of a work command-sleep command cycle change, a ratio of a work command duration to a sleep command duration in one cycle is δ, and a calculation formula of δ is as follows:
wherein, Tx＝T0+k·(T1-T0) At a resting temperature, TW＝T1-k·(T1-T0) The operating temperature.
3. The anti-surge dual-power locomotive temperature control system according to claim 2, wherein the main control module further comprises an input/output socket, an analog amplification circuit and a relay control circuit, the input/output socket is used for connecting the temperature monitoring module and the cooling module, the analog amplification circuit is used for amplifying signals collected by the temperature detection module and then transmitting the signals to the single chip for operation processing, and the relay control circuit is used for processing instructions sent by the main control module and controlling the operation of the cooling module.
4. An anti-surge dual-power locomotive temperature control system according to claim 3, wherein the anti-surge sub-circuit is connected in parallel by three parts, the first part is a voltage stabilizing diode connected in series with a voltage dependent resistor, the second part is a voltage stabilizing diode connected in series with an inductor, and the third part is a polar capacitor connected in parallel with a non-polar capacitor.
5. The anti-surge dual-power locomotive temperature control system according to claim 4, wherein the dual-power circuit comprises two power sources U1 and U2, each of the power sources U1 and U2 comprises 4 interfaces, namely a 220V positive interface, a 220V negative interface, a 12V output interface and a 0V output interface, wherein the 12V output interface is connected to the 12V output end in a forward direction through a diode, the 0V output interface is connected to a ground end in a reverse direction through a diode, the 220V positive interface is connected to two interfaces in a three-terminal connector, the other interface of the three-terminal connector is connected to the positive power output end in the input/output socket power interface in a reverse direction through a diode, and the 220V negative interface is connected to the negative power output end in the input/output socket power interface in a forward direction through a diode.
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| CN113682142A (en) * | 2021-08-27 | 2021-11-23 | 河南牧原智能科技有限公司 | Wireless vehicle monitoring system |
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