Industrial Internet data collector with temperature difference power generation function and power generation method thereof

Abstract

The present invention discloses an industrial Internet data collector with a temperature difference power generation function and a power generation method thereof. The power generation method of the industrial Internet data collector with a temperature difference power generation function includes step S1: when a semiconductor temperature difference power generation sheet is in a temperature difference environment, a voltage is generated and the generated voltage is transmitted to a maximum power point tracking circuit, so that the maximum power point tracking circuit continuously maintains the output power of the semiconductor temperature difference power generation sheet at the maximum power. The industrial Internet data collector with a temperature difference power generation function disclosed by the present invention and a power generation method thereof, based on the Seebeck effect, utilizes the semiconductor temperature difference power generation sheet to generate a voltage when it is in a temperature difference environment, and uses the voltage to charge the battery inside the collector and to power the collector, thereby solving the problems existing in the prior art and can be applied to the collection of industrial data in a high temperature difference environment.

Description

Technical Field

[0001] The present invention belongs to the field of industrial Internet data collection, and specifically relates to an industrial Internet data collector with a temperature difference power generation function and a power generation method of an industrial Internet data collector with a temperature difference power generation function. Background Art

[0002] With the introduction of related concepts such as Industry 4.0, Industrial Internet, and Intelligent Manufacturing, it is becoming increasingly important to deploy a large number of industrial data collectors to collect industrial data. During the installation of industrial data collectors, it is necessary to consider the wiring problem. The cables include power cables, communication cables, and signal acquisition cables. In special cases, these cables will affect the operation of the equipment, such as when the collector needs to be installed on a moving part.

[0003] Communication cables can be omitted by using wireless communication, such as WiFi, NBIOT, lora, zigbee, and Bluetooth. Signal acquisition cables are usually stationary relative to moving parts and often do not affect the operation of the equipment. Power cables can be solved by battery power or wireless power supply. However, battery power supply has the problem of requiring regular replacement or charging of batteries, which greatly increases the workload. Wireless power supply has harsh application conditions and electromagnetic pollution, and is often not applicable under actual conditions.

[0004] Therefore, further improvements are made to the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide an industrial Internet data collector with temperature difference power generation function and a power generation method thereof, which solves the problems existing in the prior art. Power can be supplied as long as there is a temperature difference environment, which simplifies the power supply method and is suitable for use in special scenarios.

[0006] To achieve the above objectives, the present invention provides a power generation method of an industrial Internet data collector with a temperature difference power generation function, which is used for temperature difference power generation and includes the following steps:

[0007] Step S1: When the semiconductor thermoelectric power generation chip is in a temperature difference environment (according to the Seebeck effect), a voltage is generated and the generated voltage is transmitted to the maximum power point tracking circuit, so that the maximum power point tracking circuit continuously maintains the output power of the semiconductor thermoelectric power generation chip (matching the current temperature difference) at the maximum power;

[0008] Step S2: The maximum power point tracking circuit determines the output power of the semiconductor thermoelectric generator to determine whether the current output power directly meets the power supply demand of the industrial Internet data acquisition circuit. If it does, execute step S3; otherwise, execute step S4:

[0009] Step S3: The first branch of the switching switch is turned on, and the maximum power point tracking circuit transmits the output power of the semiconductor temperature difference power generation chip to the second voltage stabilizing circuit, so that the second voltage stabilizing circuit stabilizes the input voltage and transmits it to the industrial Internet data acquisition circuit through the switching switch, thereby directly meeting the power supply demand of the industrial Internet data acquisition circuit and performing the acquisition work;

[0010] Step S4: The second branch of the switching switch is turned on, and the battery transmits its own power supply to the first voltage stabilizing circuit, so that the first voltage stabilizing circuit stabilizes the input voltage and transmits it to the industrial Internet data acquisition circuit through the switching switch, thereby indirectly meeting the power supply demand of the industrial Internet data acquisition circuit and performing acquisition work.

[0011] As a further preferred technical solution of the above technical solution, step S3 is specifically implemented as the following steps:

[0012] Step S3.1: If the battery power state is not fully charged, and the charging circuit determines the remaining power of the output power of the semiconductor thermoelectric power generation chip under the power supply demand of the industrial Internet data acquisition circuit, if the remaining power reaches the battery charging threshold, the battery is charged until the battery is fully charged;

[0013] Step S3.2: If the battery is fully charged, the battery will not be charged regardless of whether the remaining power of the semiconductor thermoelectric generator reaches the battery charging threshold after satisfying the power supply demand of the industrial Internet data acquisition circuit.

[0014] As a further preferred technical solution of the above technical solution, step S4 is specifically implemented as the following steps:

[0015] Step S4.1: The charging circuit determines the output power of the semiconductor thermoelectric generator, and if the output power reaches the battery charging threshold, the battery is charged;

[0016] Step S4.2: The charging circuit determines the output power of the semiconductor thermoelectric generator. If the output power does not reach the battery charging threshold, the battery will not be charged.

[0017] As a further preferred technical solution of the above technical solution, the area with a temperature difference environment where the semiconductor thermoelectric power generation sheet is placed is divided into several sub-areas, each sub-area is provided with a semiconductor thermoelectric power generation sheet (for example, several semiconductor thermoelectric power generation sheets are placed on the surface of a boiler or other heating equipment, so that a temperature difference is generated at both ends, but some heating equipment has a change in its local high temperature point due to other factors such as thermal conductivity, so that the temperature difference of each sub-area will change), wherein:

[0018] Each sub-area is provided with a temperature sensor and each temperature sensor is connected to a processor, so that the temperature value of each sub-area obtained by detection is transmitted to the controller in real time (assuming that the temperature value of the end of each semiconductor thermoelectric power generation sheet away from the heating device remains unchanged and is room temperature, so the higher the temperature value of the end close to the heating device, the greater the temperature difference generated, and the greater the power generation power) to obtain the temperature difference of each sub-area;

[0019] The controller periodically obtains the current power supply demand of the entire collector, and controls the switching of the power generation sheet according to the temperature difference of each sub-area, so that the semiconductor temperature difference power generation sheet that meets the current power supply demand is turned on to generate electricity.

[0020] As a further preferred technical solution of the above technical solution, the controller obtains the current power supply demand of the entire collector, which is specifically implemented as follows:

[0021] If the battery is fully charged, the current (main) power supply demand is the industrial Internet data acquisition circuit, so the controller switches on the semiconductor temperature difference power generation chips of one or more sub-areas through the power generation chip switching switch to meet the current power supply demand (if the power generated by one sub-area is sufficient, one is enough, if one is not enough, multiple are used);

[0022] If the battery is not fully charged, the current (main) power demand is the industrial Internet data acquisition circuit and the battery, so the controller switches on the semiconductor temperature difference power generation chips in one or more sub-areas through the power generation chip switching switch to meet the current power supply demand (if the power generated by one sub-area is sufficient, one is enough, if one is not enough, multiple are used).

[0023] It is worth mentioning that if all the semiconductor thermoelectric power generation sheets in all sub-areas that are turned on cannot directly meet the power supply demand of the industrial Internet data acquisition circuit, then as in step S4, the battery is used for supplementary power supply, and charging is performed after determining whether the battery charging threshold is reached.

[0024] To achieve the above purpose, the present invention also provides an industrial Internet data collector with a temperature difference power generation function, including a semiconductor temperature difference power generation chip, a maximum power point tracking circuit, a charging circuit, a first voltage stabilizing circuit, a second voltage stabilizing circuit and an industrial Internet data acquisition circuit, wherein:

[0025] The output end of the semiconductor temperature difference power generation sheet is electrically connected to the input end of the maximum power point tracking circuit, the first output end of the maximum power point tracking circuit is electrically connected to the input end of the second voltage stabilizing circuit, and the output end of the second voltage stabilizing circuit is electrically connected to the first input end of the switching switch, and the output end of the switching switch is electrically connected to the input end of the industrial Internet data acquisition circuit;

[0026] The second output end of the maximum power point tracking circuit is electrically connected to the input end of the charging circuit and the output end of the charging circuit is electrically connected to the input end of the battery, the output end of the battery is electrically connected to the input end of the first voltage stabilizing circuit and the output end of the first voltage stabilizing circuit is electrically connected to the second input end of the switching switch.

[0027] As a further preferred technical solution of the above technical solution, the maximum power point tracking circuit is electrically connected to the switching switch.

[0028] The beneficial effects of the present invention are:

[0029] In industrial data collection, when there is a high temperature difference environment and wired power supply is not possible, if conventional battery power supply is used, the battery needs to be replaced or charged regularly. The present invention uses the Seebeck effect to generate voltage when a semiconductor thermoelectric generator is in a temperature difference environment, and uses the voltage to charge the battery inside the collector and power the collector, which solves the problems existing in the prior art and can be applied to the collection of industrial data in a high temperature difference environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of an industrial Internet data collector with temperature difference power generation function and a power generation method thereof of the present invention.

[0031] Figure 2 It is an electrical connection diagram of the industrial Internet data collector with temperature difference power generation function and its power generation method of the present invention.

[0032] The reference numerals in the accompanying drawings include: 1. semiconductor temperature difference power generation chip; 2. maximum power point tracking circuit; 3. charging circuit; 4. battery; 5. first voltage stabilization circuit; 6. second voltage stabilization circuit; 7. switching switch; 8. industrial Internet data acquisition circuit. DETAILED DESCRIPTION

[0033] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0034] In the preferred embodiments of the present invention, those skilled in the art should note that the industrial Internet data acquisition circuit and semiconductor temperature difference power generation chip involved in the present invention can be regarded as prior art.

[0035] Preferred embodiments.

[0036] The present invention discloses a power generation method of an industrial Internet data collector with a temperature difference power generation function, which is used for temperature difference power generation and includes the following steps:

[0037] Step S1: When the semiconductor thermoelectric power generation chip 1 is in a temperature difference environment (according to the Seebeck effect), a voltage is generated and the generated voltage is transmitted to the maximum power point tracking circuit 2, so that the maximum power point tracking circuit 2 continuously maintains the output power of the semiconductor thermoelectric power generation chip 1 at the maximum power (matching the current temperature difference);

[0038] Step S2: The maximum power point tracking circuit 2 determines the output power of the semiconductor thermoelectric power generation chip 1 to determine whether the current output power directly meets the power supply demand of the industrial Internet data acquisition circuit 8. If it does, execute step S3, otherwise execute step S4:

[0039] Step S3: The first branch of the switching switch 7 is turned on, and the maximum power point tracking circuit 2 transmits the output power of the semiconductor temperature difference power generation sheet 1 to the second voltage stabilizing circuit 6, so that the second voltage stabilizing circuit 6 stabilizes the input voltage and transmits it to the industrial Internet data acquisition circuit 8 through the switching switch 7, thereby directly meeting the power supply demand of the industrial Internet data acquisition circuit 8 and performing the acquisition work;

[0040] Step S4: The second branch of the switching switch 7 is turned on, and the battery 4 transmits its own power supply to the first voltage stabilizing circuit 5, so that the first voltage stabilizing circuit 5 stabilizes the input voltage and transmits it to the industrial Internet data acquisition circuit 8 through the switching switch 7, thereby indirectly meeting the power supply demand of the industrial Internet data acquisition circuit 8 and performing acquisition work.

[0041] Specifically, step S3 is implemented as follows:

[0042] Step S3.1: If the power state of the battery 4 is not fully charged, and the charging circuit 3 determines the remaining power of the output power of the semiconductor thermoelectric power generation chip 1 under the power supply demand of the industrial Internet data acquisition circuit 8, if the remaining power reaches the charging threshold of the battery 4, the battery 4 is charged until the battery 4 is fully charged;

[0043] Step S3.2: If the battery 4 is fully charged, the output power of the semiconductor thermoelectric power generation chip 1 will not continue to charge the battery regardless of whether the remaining power reaches the battery charging threshold after meeting the power supply demand of the industrial Internet data acquisition circuit 8.

[0044] More specifically, step S4 is implemented as follows:

[0045] Step S4.1: the charging circuit 3 determines the output power of the semiconductor thermoelectric power generation chip 1, and if the output power reaches the charging threshold of the battery 4, the battery is charged;

[0046] Step S4.2: the charging circuit 3 determines the output power of the semiconductor thermoelectric generator 1. If the output power does not reach the charging threshold of the battery 4, the battery is not charged.

[0047] Preferably, the area with a temperature difference environment where the semiconductor thermoelectric power generation sheet is placed is divided into several sub-areas, each of which is provided with a semiconductor thermoelectric power generation sheet (for example, several semiconductor thermoelectric power generation sheets are placed on the surface of a boiler or other heating device, so that a temperature difference is generated at both ends, but some heating devices may have a change in local high temperature points due to other factors such as thermal conductivity, thereby causing the temperature difference of each sub-area to change), wherein:

[0048] Each sub-area is provided with a temperature sensor and each temperature sensor is connected to a processor, so that the temperature value of each sub-area obtained by detection is transmitted to the controller in real time (assuming that the temperature value of the end of each semiconductor thermoelectric power generation sheet away from the heating device remains unchanged and is room temperature, so the higher the temperature value of the end close to the heating device, the greater the temperature difference generated, and the greater the power generation power) to obtain the temperature difference of each sub-area;

[0049] The controller periodically obtains the current power supply demand of the entire collector, and controls the switching of the power generation sheet according to the temperature difference of each sub-area, so that the semiconductor temperature difference power generation sheet that meets the current power supply demand is turned on to generate electricity.

[0050] Preferably, the controller obtains the current power supply requirement of the entire collector, which is specifically implemented as follows:

[0051] If the battery is fully charged, the current (main) power supply demand is the industrial Internet data acquisition circuit, so the controller switches on the semiconductor temperature difference power generation chips of one or more sub-areas through the power generation chip switching switch to meet the current power supply demand (if the power generated by one sub-area is sufficient, one is enough, if one is not enough, multiple are used);

[0052] If the battery is not fully charged, the current (main) power demand is the industrial Internet data acquisition circuit and the battery, so the controller switches on the semiconductor temperature difference power generation chips in one or more sub-areas through the power generation chip switching switch to meet the current power supply demand (if the power generated by one sub-area is sufficient, one is enough, if one is not enough, multiple are used).

[0053] It is worth mentioning that if all the semiconductor thermoelectric power generation sheets in all sub-areas that are turned on cannot directly meet the power supply demand of the industrial Internet data acquisition circuit, then as in step S4, the battery is used for supplementary power supply, and charging is performed after determining whether the battery charging threshold is reached.

[0054] The present invention also discloses an industrial Internet data collector with a temperature difference power generation function, comprising a semiconductor temperature difference power generation chip 1, a maximum power point tracking circuit 2, a charging circuit 3, a first voltage stabilizing circuit 5, a second voltage stabilizing circuit 6 and an industrial Internet data acquisition circuit 8, wherein:

[0055] The output end of the semiconductor temperature difference power generation sheet 1 is electrically connected to the input end of the maximum power point tracking circuit 2, the first output end of the maximum power point tracking circuit 2 is electrically connected to the input end of the second voltage stabilizing circuit 6, and the output end of the second voltage stabilizing circuit 6 is electrically connected to the first input end of the switching switch 7, and the output end of the switching switch 7 is electrically connected to the input end of the industrial Internet data acquisition circuit 8;

[0056] The second output end of the maximum power point tracking circuit 2 is electrically connected to the input end of the charging circuit 3, and the output end of the charging circuit 3 is electrically connected to the input end of the battery 4, the output end of the battery 4 is electrically connected to the input end of the first voltage stabilizing circuit 5, and the output end of the first voltage stabilizing circuit 5 is electrically connected to the second input end of the switching switch 7.

[0057] Specifically, the maximum power point tracking circuit 2 is electrically connected to the switch 7 .

[0058] Preferably, the principle of the present invention is:

[0059] The semiconductor thermoelectric power generation sheet 1 can generate voltage according to the Seebeck effect when it is in a temperature difference environment, and the voltage is used to charge the battery inside the collector and to power the collector.

[0060] The maximum power point tracking circuit 2 can dynamically adjust the output power of the semiconductor thermoelectric power generation sheet 1 so that it always maintains the maximum power output. The maximum power point tracking algorithm includes but is not limited to the voltage perturbation observation method, the conductance increment method, and the constant voltage method (the maximum power point tracking circuit judges the output power. If the current output power directly meets the power supply requirement of the industrial Internet data acquisition circuit, the switching switch is controlled to turn on the first branch, so that the output voltage of the semiconductor thermoelectric power generation sheet is directly transmitted to the acquisition circuit through the second voltage stabilizing circuit (and the charging circuit determines whether the remaining power after providing the voltage of the acquisition circuit meets the charging threshold. If it meets and the battery is in an uncharged state, the battery is charged. If the battery is in a fully charged state, the charging is not continued); if the current output power does not meet the power supply requirement of the industrial Internet data acquisition circuit, the acquisition circuit is powered by the battery and the first voltage stabilizing circuit).

[0061] The charging circuit 3 has a charging management function for the battery 4, can dynamically adjust the output mode according to the power level of the battery 4, and has an overcharge protection function.

[0062] The battery 4 has a charging function, including but not limited to nickel-cadmium batteries, nickel-metal hydride batteries, and lithium batteries.

[0063] The first voltage stabilizing circuit 5 and the second voltage stabilizing circuit 6 can stabilize the output voltage and are used to power the industrial Internet data acquisition circuit 8.

[0064] The switch 7 can switch between battery 4 power supply or semiconductor thermoelectric power generation chip 1 power supply according to the current output power of semiconductor thermoelectric power generation chip 1. When semiconductor thermoelectric power generation chip 1 is powering, battery 4 can be charged at the same time.

[0065] The industrial Internet data acquisition circuit 8 can collect industrial Internet data and upload it to the cloud platform. The collection methods include but are not limited to voltage, current, temperature, humidity, and speed. The communication interface includes but is not limited to RJ45, UART, 232, 422, 485, CAN, wifi, NBIOT, lora, zigbee, and Bluetooth.

[0066] It is worth mentioning that the technical features such as the industrial Internet data acquisition circuit and the semiconductor temperature difference power generation chip involved in the patent application of this invention should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected according to the conventional selection in the field, and should not be regarded as the inventive point of the patent of this invention. The patent of this invention will not be further elaborated.

[0067] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power generation method of an industrial Internet data collector with a temperature difference power generation function, used for temperature difference power generation, characterized in that: The following steps are involved: Step S1: When the semiconductor thermoelectric power generation chip is in a temperature difference environment, a voltage is generated and the generated voltage is transmitted to a maximum power point tracking circuit, so that the maximum power point tracking circuit continuously maintains the output power of the semiconductor thermoelectric power generation chip at the maximum power; Step S2: The maximum power point tracking circuit determines the output power of the semiconductor thermoelectric generator to determine whether the current output power directly meets the power supply demand of the industrial Internet data acquisition circuit. If it does, execute step S3; otherwise, execute step S4: Step S3: The first branch of the switching switch is turned on, and the maximum power point tracking circuit transmits the output power of the semiconductor temperature difference power generation chip to the second voltage stabilizing circuit, so that the second voltage stabilizing circuit stabilizes the input voltage and transmits it to the industrial Internet data acquisition circuit through the switching switch, thereby directly meeting the power supply demand of the industrial Internet data acquisition circuit and performing the acquisition work; Step S4: The second branch of the switching switch is turned on, and the battery transmits its own power supply to the first voltage stabilizing circuit, so that the first voltage stabilizing circuit stabilizes the input voltage and transmits it to the industrial Internet data acquisition circuit through the switching switch, thereby indirectly meeting the power supply demand of the industrial Internet data acquisition circuit and performing acquisition work; Step S3 is specifically implemented as the following steps: Step S3.1: If the battery power state is not fully charged, and the charging circuit determines the remaining power of the output power of the semiconductor thermoelectric power generation chip under the power supply demand of the industrial Internet data acquisition circuit, if the remaining power reaches the battery charging threshold, the battery is charged until the battery is fully charged; Step S3.2: If the battery is fully charged, the battery will not be charged any further when the remaining power of the semiconductor thermoelectric power generation chip meets the power supply requirements of the industrial Internet data acquisition circuit, regardless of whether the battery charging threshold is reached; Step S4 is specifically implemented as follows: Step S4.1: The charging circuit determines the output power of the semiconductor thermoelectric generator, and if the output power reaches the battery charging threshold, the battery is charged; Step S4.2: The charging circuit determines the output power of the semiconductor thermoelectric generator. If the output power does not reach the battery charging threshold, the battery is not charged. The area with a temperature difference environment where the semiconductor thermoelectric power generation sheet is placed is divided into several sub-areas, each of which is provided with a semiconductor thermoelectric power generation sheet, wherein: Each sub-region is provided with a temperature sensor and each temperature sensor is connected to a processor, so that the temperature value of each sub-region obtained by detection is transmitted to a controller in real time, thereby obtaining the temperature difference of each sub-region; The controller periodically obtains the current power supply demand of the entire collector, and controls the switching of the power generation sheet according to the temperature difference of each sub-area, so that the semiconductor temperature difference power generation sheet that meets the current power supply demand is turned on to generate electricity.

2. The power generation method of an industrial Internet data collector with a temperature difference power generation function according to claim 1 is characterized in that: For the controller to obtain the current power supply requirements of the entire collector, the specific implementation is as follows: If the battery is fully charged, the current power demand is the industrial Internet data acquisition circuit, so the controller switches on the semiconductor temperature difference power generation sheet in one or more sub-areas through the power generation sheet switching switch to meet the current power supply demand; If the battery is not fully charged, the current power demand is for the industrial Internet data acquisition circuit and the battery, so the controller switches on the semiconductor temperature difference power generation chips in one or more sub-areas through the power generation chip switching switch to meet the current power supply demand.

3. An industrial Internet data collector with a temperature difference power generation function, applied to a power generation method of an industrial Internet data collector with a temperature difference power generation function as claimed in any one of claims 1-2, characterized in that: It includes a semiconductor temperature difference power generation chip, a maximum power point tracking circuit, a charging circuit, a first voltage stabilization circuit, a second voltage stabilization circuit and an industrial Internet data acquisition circuit, wherein: The output end of the semiconductor temperature difference power generation sheet is electrically connected to the input end of the maximum power point tracking circuit, the first output end of the maximum power point tracking circuit is electrically connected to the input end of the second voltage stabilizing circuit, and the output end of the second voltage stabilizing circuit is electrically connected to the first input end of the switching switch, and the output end of the switching switch is electrically connected to the input end of the industrial Internet data acquisition circuit; The second output end of the maximum power point tracking circuit is electrically connected to the input end of the charging circuit and the output end of the charging circuit is electrically connected to the input end of the battery, the output end of the battery is electrically connected to the input end of the first voltage stabilizing circuit and the output end of the first voltage stabilizing circuit is electrically connected to the second input end of the switching switch.

4. The industrial Internet data collector with temperature difference power generation function according to claim 3 is characterized in that: The maximum power point tracking circuit is electrically connected to the switch.

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