New energy dynamometer rack process water system intelligent control system and method

Abstract

The invention discloses a new energy dynamometer rack process water system intelligent control system and method, the system comprises a flowmeter, a refrigerator and an efficient water supply pump which are respectively connected with a PLC controller, the PLC controller is connected with an upper computer, the flowmeter is used for measuring the flow of a cooling medium of each auxiliary device and sending the flow to the PLC controller; the refrigerating machine is used for providing refrigerating capacity for the process water system; the efficient water supply pump is used for providing power for circulation of chilled water in the test area in the system; the PLC is used for acquiring the flow of each auxiliary device, sending the flow to the upper computer, and acquiring an instruction sent by the upper computer to control the efficient water supply pump; and the upper computer is used for acquiring the flow of each auxiliary device, calculating to generate an instruction of the efficient water supply pump, and sending the instruction to the PLC. The control logic capable of optimizing the water system is provided, on one hand, the operation efficiency of the water pump is improved, and energy waste caused by redundant operation of the water pump is reduced.

Description

Technical Field

[0001] The invention discloses an intelligent control system and method for a process water system of a new energy dynamometer bench, belonging to the technical field of laboratory process water systems. Background Art

[0002] The laboratory process water system provides the entire test area with room temperature water of 28℃-32℃ and chilled water of 7℃-12℃ for temperature control to ensure the normal operation of constant temperature equipment. The water system runs continuously for 24 hours. During the operation of the system, all water pumps are started in sequence according to the set rated water flow of the main pipeline, so that the water flow of the main pipeline reaches the set rated flow value. At the same time, the system determines the number of refrigerators to be started according to the temperature of the chilled water supplied to the test area. At present, it has been found through monitoring that when the demand for chilled water in the laboratory is small, all water pumps are still started, resulting in the problem of power waste in the water pumps. At the same time, when the cooling capacity required by the laboratory changes from more to less, the water pumps are still running, and the refrigeration unit is still in a low-load operation state, resulting in a large amount of power waste.

[0003] At present, there is an integrated water-saving and energy-saving system, which includes an air source heat pump water heater and a shower head; the water outlet of the air source heat pump water heater is connected to the shower head through a water pipe; the shower head is also connected to a cold water pipeline for conveying cold water; a wastewater collection device is arranged under the shower head to collect wastewater after showering; the system also includes a waste heat recovery and filtration integrated device to collect and filter wastewater after showering; the water inlet of the waste heat recovery and filtration integrated device is connected to the wastewater collection device through a water pipe, and the water outlet of the waste heat recovery and filtration integrated device is connected to the air source heat pump water heater through a water pipe. This technology realizes heat recovery by recycling wastewater and exchanging heat with clean water. It does not control and adjust energy from the source, and belongs to conventional heat exchange means. Summary of the invention

[0004] The purpose of the present invention is to reduce the energy loss during the operation of the water pump, enable the water pump to operate efficiently, reduce the waste of electric energy caused by the operation of the water pump, and also avoid the refrigerator being in a low-load operation state, reduce the problem of electric energy waste during the operation of the refrigeration unit, and propose a new energy dynamometer bench process water system intelligent control system and method.

[0005] The problem to be solved by the present invention is achieved by the following technical solutions:

[0006] According to a first aspect of an embodiment of the present invention, there is provided an intelligent control system for a process water system of a new energy dynamometer bench, comprising a flow meter, a refrigerator, and a high-efficiency water supply pump respectively connected to a PLC controller, wherein the PLC controller is connected to a host computer, wherein:

[0007] The flow meter is used to measure the flow rate of the cooling medium of each auxiliary device and send it to the PLC controller;

[0008] The refrigerator is used to provide cooling capacity for the process water system;

[0009] The high-efficiency water supply pump is used to provide power for the circulation of chilled water in the system for the test area;

[0010] The PLC controller is used to obtain the flow of each auxiliary device and send it to the host computer, and obtain the instructions sent by the host computer to control the high-efficiency water supply pump;

[0011] The host computer is used to obtain the flow of each auxiliary device, calculate and generate instructions for a high-efficiency water supply pump and send them to the PLC controller.

[0012] Preferably, it also includes a temperature sensor, which is used to monitor the inlet and return water temperatures of each auxiliary equipment in the test area and send them to the PLC controller. The PLC controller is used to obtain the inlet and return water temperatures of each auxiliary equipment and send them to the host computer, and obtain the instructions sent by the host computer to control the refrigerator. The host computer is used to obtain the inlet and return water temperatures of each auxiliary equipment, calculate and generate instructions for the refrigerator and send them to the PLC controller.

[0013] Preferably, the auxiliary equipment at least includes: a water thermostat, an oil thermostat, a fuel consumption meter and a hot and cold shock device.

[0014] Preferably, the flow meter at least includes: a first flow meter, a second flow meter, a third flow meter and a fourth flow meter, and the first flow meter, the second flow meter, the third flow meter and the fourth flow meter are respectively connected to the water thermostat, the oil thermostat, the fuel consumption meter and the hot and cold shock device pipelines, and the temperature sensor at least includes: a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth temperature sensor, and the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor are respectively arranged in the water thermostat, the oil thermostat, the fuel consumption meter and the hot and cold shock device pipelines.

[0015] Preferably, the high-efficiency water supply pump includes at least: a first water pump, a second water pump, a third water pump, a fourth water pump and a fifth water pump, and the first water pump, the second water pump, the third water pump, the fourth water pump and the fifth water pump are respectively connected to the flow meter pipeline.

[0016] Preferably, the refrigerator comprises at least a first refrigerator and four second refrigerators, the cooling capacity of the first refrigerator is X KW, the cooling capacity of the four second refrigerators is Y KW, X and Y are both positive numbers and X<Y.

[0017] According to a second aspect of an embodiment of the present invention, a method for intelligently controlling a process water system of a new energy dynamometer bench is provided, which is applied to a host computer of an intelligent control system of a process water system of a new energy dynamometer bench described in the first aspect, comprising:

[0018] Respectively obtain the initial first chilled water flow, the initial second chilled water flow, the initial third chilled water flow and the initial fourth chilled water flow in the first flow meter, the second flow meter, the third flow meter and the fourth flow meter, and obtain the total chilled water flow used in the current test area by adding the initial first chilled water flow, the initial second chilled water flow, the initial third chilled water flow and the initial fourth chilled water flow;

[0019] The number of water pumps turned on is obtained based on the total chilled water flow and the flow of a single water pump used in the current test area, and a water pump turn-on instruction is generated based on the number of water pumps turned on and sent to the PLC controller.

[0020] Preferably, the number of water pumps to be turned on is determined based on the total flow of the water pumps being greater than or equal to the total chilled water flow used in the current test area.

[0021] Preferably, it also includes: after turning on the corresponding water pump, respectively obtaining the real-time first chilled water flow, the real-time second chilled water flow, the real-time third chilled water flow and the real-time fourth chilled water flow, determining the real-time total chilled water flow used in the current test area according to the real-time first chilled water flow, the real-time second chilled water flow, the real-time third chilled water flow and the real-time fourth chilled water flow, obtaining the number of water pumps on / off according to the real-time total chilled water flow used in the current test area, and generating a water pump on / off instruction according to the water pump on / off number and sending it to the PLC controller.

[0022] Preferably, it also includes:

[0023] According to the initial first chilled water flow rate, the initial second chilled water flow rate, the initial third chilled water flow rate and the initial fourth chilled water flow rate and density, respectively determine the chilled water mass flowing through the water thermostat per unit time, the chilled water mass flowing through the oil thermostat per unit time, the chilled water mass flowing through the fuel consumption meter per unit time and the chilled water mass flowing through the cold and hot shock device per unit time;

[0024] According to the mass of chilled water flowing through the water thermostat in unit time, the mass of chilled water flowing through the oil thermostat in unit time, the mass of chilled water flowing through the fuel consumption meter in unit time, the mass of chilled water flowing through the cold and hot shock device in unit time, the specific heat capacity and the corresponding inlet and return water temperature difference, the heat exchange of the water thermostat, the heat exchange of the oil thermostat, the heat exchange of the fuel consumption meter and the heat exchange of the cold and hot shock device are obtained respectively;

[0025] The total heat exchange is obtained according to the heat exchange of the water thermostat, the heat exchange of the oil thermostat, the heat exchange of the fuel consumption meter and the heat exchange of the hot and cold shock device;

[0026] A refrigerator start instruction is obtained according to the total heat exchange and sent to a PLC controller.

[0027] Preferably, obtaining a refrigerator start instruction according to the total heat exchange amount includes:

[0028] When the total heat exchange amount is ≤X, the refrigerator start instruction is to start the first refrigerator;

[0029] When X<total heat exchange≤Y, the refrigerator start instruction is to start the second refrigerator;

[0030] When Y<total heat exchange amount≤, the refrigerator start instruction is to start the first refrigerator and the second refrigerator;

[0031] When X+Y<the total heat exchange amount, the refrigerator start instruction is to start at least two second refrigerators.

[0032] The beneficial effects of the present invention are:

[0033] The present invention provides an intelligent control system and method for a process water system of a new energy dynamometer bench, which can optimize the control logic of the water system. On the one hand, the operation efficiency of the water pump is improved, and the energy waste caused by the redundant operation of the water pump is reduced; on the other hand, the operation number of the refrigeration unit is adjusted according to the heat load of the laboratory equipment, so as to maximize the cooling capacity of the refrigeration unit, improve the working load of the refrigeration unit, and reduce the electric energy waste caused by the operation of the refrigeration unit.

[0034] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic block diagram of an intelligent control system for a process water system of a new energy dynamometer bench according to an exemplary embodiment.

[0036] Figure 2 The present invention is a flow chart showing a method for intelligently controlling a process water system of a new energy dynamometer bench according to an exemplary embodiment. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Embodiment 1:

[0041] Figure 1 It is a structural schematic block diagram of an intelligent control system of a new energy dynamometer bench process water system according to an exemplary embodiment, including a flow meter, a refrigerator, and a high-efficiency water supply pump respectively connected to a PLC controller, and the PLC controller is connected to a host computer, wherein:

[0042] The flow meter is used to measure the flow of the cooling medium of each auxiliary equipment and send it to the PLC controller; the refrigerator is used to provide cooling capacity for the process water system; the high-efficiency water supply pump is used to provide chilled water for the test area to provide power for the circulation of the system; the PLC controller is used to obtain the flow of each auxiliary equipment and send it to the host computer, and obtain the instructions sent by the host computer to control the high-efficiency water supply pump; the host computer is used to obtain the flow of each auxiliary equipment and calculate to generate instructions for the high-efficiency water supply pump and send them to the PLC controller.

[0043] This embodiment also includes a temperature sensor, which is used to monitor the inlet and return water temperatures of each auxiliary equipment in the test area and send them to the PLC controller. The PLC controller is used to obtain the inlet and return water temperatures of each auxiliary equipment and send them to the host computer, and obtain the instructions sent by the host computer to control the refrigerator. The host computer is used to obtain the inlet and return water temperatures of each auxiliary equipment, calculate and generate instructions for the refrigerator and send them to the PLC controller.

[0044] The auxiliary equipment at least includes: a water thermostat, an oil thermostat, a fuel consumption meter and a hot and cold shock device. The flow meter at least includes: a first flow meter, a second flow meter, a third flow meter and a fourth flow meter, and the first flow meter, the second flow meter, the third flow meter and the fourth flow meter are respectively connected to the water thermostat, the oil thermostat, the fuel consumption meter and the hot and cold shock device pipelines, and the temperature sensor at least includes: a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth temperature sensor, and the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor are respectively arranged in the water thermostat, the oil thermostat, the fuel consumption meter and the hot and cold shock device pipelines.

[0045] The above-mentioned high-efficiency water supply pump includes at least: a first water pump, a second water pump, a third water pump, a fourth water pump and a fifth water pump, and the first water pump, the second water pump, the third water pump, the fourth water pump and the fifth water pump are respectively connected to the flow meter pipeline.

[0046] The refrigerator comprises at least: a first refrigerator and four second refrigerators, the cooling capacity of the first refrigerator is X KW, the cooling capacity of the four second refrigerators is Y KW, X and Y are both positive numbers and X<Y. X is preferably 457 KW, and Y is preferably 1407 KW.

[0047] Embodiment 2:

[0048] Figure 2 The flowchart of a method for intelligently controlling a process water system of a new energy dynamometer bench is shown according to an exemplary embodiment. The specific steps include:

[0049] The initial first chilled water flow, the initial second chilled water flow, the initial third chilled water flow and the initial fourth chilled water flow in the first flow meter, the second flow meter, the third flow meter and the fourth flow meter are obtained respectively, and the total chilled water flow F used in the current test area is obtained by adding the initial first chilled water flow, the initial second chilled water flow, the initial third chilled water flow and the initial fourth chilled water flow. 总 ;

[0050] According to the total chilled water flow F currently used in the test area 总 The number of pumps turned on is obtained by the flow rate of a single pump, and a pump turn-on instruction is generated according to the number of pumps turned on and sent to the PLC controller. The number of pumps turned on is determined based on the total flow rate of the pumps being greater than or equal to the total chilled water flow rate currently used in the test area.

[0051] After turning on the corresponding water pump, obtain the real-time first chilled water flow, the real-time second chilled water flow, the real-time third chilled water flow and the real-time fourth chilled water flow respectively, determine the real-time total chilled water flow used in the current test area according to the real-time first chilled water flow, the real-time second chilled water flow, the real-time third chilled water flow and the real-time fourth chilled water flow, obtain the number of water pumps turned on / off according to the real-time total chilled water flow used in the current test area, generate a water pump turn-on / off instruction according to the water pump turn-on / off number and send it to the PLC controller. That is: when the total flow F of the started water pump is greater than or equal to F 总 When F 总 When the actual F 总 The host computer controls the increase or decrease of the number of pumps started, dynamically adjusts the start and stop of the pumps, minimizes the number of pump starts, and saves the electricity consumed by the pump operation.

[0052] According to the initial first chilled water flow rate, the initial second chilled water flow rate, the initial third chilled water flow rate and the initial fourth chilled water flow rate and density, respectively determine the chilled water mass flowing through the water thermostat per unit time, the chilled water mass flowing through the oil thermostat per unit time, the chilled water mass flowing through the fuel consumption meter per unit time and the chilled water mass flowing through the cold and hot shock device per unit time;

[0053] According to the mass of chilled water flowing through the water thermostat in unit time, the mass of chilled water flowing through the oil thermostat in unit time, the mass of chilled water flowing through the fuel consumption meter in unit time, the mass of chilled water flowing through the hot and cold shock device in unit time, the specific heat capacity and the corresponding inlet and return water temperature difference, the heat exchange of the water thermostat, the heat exchange of the oil thermostat, the heat exchange of the fuel consumption meter and the heat exchange of the hot and cold shock device are obtained respectively. According to the heat exchange of the water thermostat, the heat exchange of the oil thermostat, the heat exchange of the fuel consumption meter and the heat exchange of the hot and cold shock device, the total heat exchange is obtained. According to the total heat exchange, the refrigerator start command is obtained and sent to the PLC controller. That is, according to the chilled water flow F of each auxiliary equipment n , binding density ρ n , calculate the mass m of chilled water flowing through this auxiliary equipment per unit time n , multiplied by the specific heat capacity c and the inlet and return water temperature difference Δt n , get the heat transfer capacity Q of this equipment n Each auxiliary device calculates the corresponding heat exchange in this way, and the control unit adds the heat exchange of each device to obtain the total heat exchange Q 总 .

[0054] The above-mentioned method of obtaining the refrigerator start instruction according to the total heat exchange amount includes:

[0055] When the total heat exchange amount is ≤X, the refrigerator start instruction is to start the first refrigerator;

[0056] When X<total heat exchange≤Y, the refrigerator start instruction is to start the second refrigerator;

[0057] When Y<total heat exchange amount≤, the refrigerator start instruction is to start the first refrigerator and the second refrigerator;

[0058] When X+Y<the total heat exchange amount, the refrigerator start instruction is to start at least two second refrigerators.

[0059] When the total cooling capacity Q 冷 Greater than or equal to the total heat transfer Q 总 When the cooling capacity meets the heat exchange demand, the refrigerator is stopped and started. When the number of auxiliary equipment in the test area changes, the total heat exchange Q 总 The temperature will also change accordingly. At this time, the control unit calculates and obtains the new cooling capacity, and then matches the corresponding number and model of refrigerators to operate according to the new cooling capacity.

[0060] Embodiment 3

[0061] An embodiment of the present application provides a host computer, which may be the host computer in the above embodiment.

[0062] Usually, the host computer includes: a processor and a memory.

[0063] The processor may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array). The processor may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor may also include an AI (Artificial Intelligence) processor, which is used to process computing operations related to machine learning.

[0064] The memory may include one or more computer-readable storage media, which may be tangible and non-transitory. The memory may also include high-speed random access memory, and non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory is used to store at least one instruction, which is used to be executed by the processor to implement a new energy dynamometer bench process water system intelligent control method provided in this application.

[0065] In some embodiments, the host computer may also optionally include: a peripheral device interface and at least one peripheral device. Specifically, the peripheral device includes: at least one of a radio frequency circuit, a touch display screen, a camera, an audio circuit, a positioning component, and a power supply.

[0066] The peripheral device interface can be used to connect at least one peripheral device related to I / O (Input / Output) to the processor and the memory. In some embodiments, the processor, the memory, and the peripheral device interface are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor, the memory, and the peripheral device interface can be implemented on a separate chip or circuit board, which is not limited in this embodiment.

[0067] The radio frequency circuit is used to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuit communicates with communication networks and other communication devices through electromagnetic signals. The radio frequency circuit converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals into electrical signals. Optionally, the radio frequency circuit includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a user identity module card, and the like. The radio frequency circuit can communicate with other host computers through at least one wireless communication protocol. The wireless communication protocol includes, but is not limited to: the World Wide Web, a metropolitan area network, an intranet, various generations of mobile communication networks (2G, 3G, 4G and 5G), a wireless local area network and / or a WiFi (Wireless Fidelity) network. In some embodiments, the radio frequency circuit may also include circuits related to NFC (Near Field Communication), which is not limited in this application.

[0068] The touch display screen is used to display the UI (User Interface). The UI may include graphics, text, icons, videos and any combination thereof. The touch display screen also has the ability to collect touch signals on the surface or above the surface of the touch display screen. The touch signal can be input to the processor as a control signal for processing. The touch display screen is used to provide virtual buttons and / or virtual keyboards, also known as soft buttons and / or soft keyboards. In some embodiments, the touch display screen can be one, and the front panel of the host computer is set; in other embodiments, the touch display screen can be at least two, which are respectively set on different surfaces of the host computer or are folded; in some other embodiments, the touch display screen can be a flexible display screen, which is set on the curved surface or folded surface of the host computer. Even, the touch display screen can also be set to a non-rectangular irregular shape, that is, a special-shaped screen. The touch display screen can be made of materials such as LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode) and the like.

[0069] The camera assembly is used to capture images or videos. Optionally, the camera assembly includes a front camera and a rear camera. Typically, the front camera is used to realize video calls or selfies, and the rear camera is used to realize photo or video shooting. In some embodiments, there are at least two rear cameras, which are any one of a main camera, a depth of field camera, and a wide-angle camera, so as to realize the fusion of the main camera and the depth of field camera to realize the background blur function, and the fusion of the main camera and the wide-angle camera to realize panoramic shooting and VR (Virtual Reality) shooting functions. In some embodiments, the camera assembly may also include a flash. The flash can be a monochrome temperature flash or a dual-color temperature flash. A dual-color temperature flash refers to a combination of a warm light flash and a cold light flash, which can be used for light compensation at different color temperatures.

[0070] The audio circuit is used to provide an audio interface between the user and the host computer. The audio circuit may include a microphone and a speaker. The microphone is used to collect sound waves from the user and the environment, and convert the sound waves into electrical signals and input them into the processor for processing, or input them into the radio frequency circuit to achieve voice communication. For the purpose of stereo acquisition or noise reduction, there can be multiple microphones, which are respectively arranged in different parts of the host computer. The microphone can also be an array microphone or an omnidirectional acquisition microphone. The speaker is used to convert the electrical signal from the processor or the radio frequency circuit into sound waves. The speaker can be a traditional film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, it can not only convert the electrical signal into sound waves audible to humans, but also convert the electrical signal into sound waves inaudible to humans for purposes such as ranging. In some embodiments, the audio circuit may also include a headphone jack.

[0071] The positioning component is used to locate the current geographic location of the host computer to achieve navigation or LBS (Location Based Service). The positioning component can be a positioning component based on the US GPS (Global Positioning System), China's Beidou system or Russia's Galileo system.

[0072] The power supply is used to power various components in the host computer. The power supply can be AC, DC, a disposable battery, or a rechargeable battery. When the power supply includes a rechargeable battery, the rechargeable battery can be a wired rechargeable battery or a wireless rechargeable battery. A wired rechargeable battery is a battery that is charged through a wired line, and a wireless rechargeable battery is a battery that is charged through a wireless coil. The rechargeable battery can also be used to support fast charging technology.

[0073] In some embodiments, the host computer further includes one or more sensors, including but not limited to: an acceleration sensor, a gyroscope sensor, a pressure sensor, a fingerprint sensor, an optical sensor, and a proximity sensor.

[0074] The accelerometer can detect the magnitude of acceleration on the three coordinate axes of the coordinate system established by the host computer. For example, the accelerometer can be used to detect the components of gravity acceleration on the three coordinate axes. The processor can control the touch screen to display the user interface in a horizontal view or a vertical view based on the gravity acceleration signal collected by the accelerometer. The accelerometer can also be used to collect game or user motion data.

[0075] The gyroscope sensor can detect the body direction and rotation angle of the host computer. The gyroscope sensor can work with the acceleration sensor to collect the user's 3D (3 Dimensions) actions on the host computer. The processor can implement the following functions based on the data collected by the gyroscope sensor: motion sensing (such as changing the UI according to the user's tilt operation), image stabilization during shooting, game control, and inertial navigation.

[0076] The pressure sensor can be set on the side frame of the host computer and / or the lower layer of the touch display screen. When the pressure sensor is set on the side frame of the host computer, it can detect the user's grip signal of the host computer, and perform left and right hand recognition or quick operation according to the grip signal. When the pressure sensor is set on the lower layer of the touch display screen, the operability controls on the UI interface can be controlled according to the user's pressure operation on the touch display screen. The operability controls include at least one of a button control, a scroll bar control, an icon control, and a menu control.

[0077] The fingerprint sensor is used to collect the user's fingerprint and identify the user based on the collected fingerprint. When the user's identity is identified as a trusted identity, the processor authorizes the user to perform relevant sensitive operations, including unlocking the screen, viewing encrypted information, downloading software, paying, and changing settings. The fingerprint sensor can be set on the front, back, or side of the host computer. When a physical button or manufacturer logo is set on the host computer, the fingerprint sensor can be integrated with the physical button or manufacturer logo.

[0078] The optical sensor is used to collect the ambient light intensity. In one embodiment, the processor can control the display brightness of the touch display screen according to the ambient light intensity collected by the optical sensor. Specifically, when the ambient light intensity is high, the display brightness of the touch display screen is increased; when the ambient light intensity is low, the display brightness of the touch display screen is decreased. In another embodiment, the processor can also dynamically adjust the shooting parameters of the camera assembly according to the ambient light intensity collected by the optical sensor.

[0079] The proximity sensor, also known as the distance sensor, is usually set on the front of the host computer. The proximity sensor is used to collect the distance between the user and the front of the host computer. In one embodiment, when the proximity sensor detects that the distance between the user and the front of the host computer is gradually decreasing, the processor controls the touch display screen to switch from the screen-on state to the screen-off state; when the proximity sensor detects that the distance between the user and the front of the host computer is gradually increasing, the processor controls the touch display screen to switch from the screen-off state to the screen-on state.

[0080] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and equivalent scope, the present invention is not limited to the specific details and the illustrations shown and described here.

Claims

1. An intelligent control system for the process water system of a new energy dynamometer bench, characterized in that: It includes a flow meter, a refrigerator, and a high-efficiency water supply pump respectively connected to a PLC controller, and the PLC controller is connected to a host computer, wherein: The flow meter is used to measure the flow rate of the cooling medium of each auxiliary device and send it to the PLC controller; The refrigerator is used to provide cooling capacity for the process water system; The high-efficiency water supply pump is used to provide power for the circulation of chilled water in the system for the test area; The PLC controller is used to obtain the flow of each auxiliary device and send it to the host computer, and obtain the instructions sent by the host computer to control the high-efficiency water supply pump; The host computer is used to obtain the flow of each auxiliary device, calculate and generate instructions for a high-efficiency water supply pump and send them to the PLC controller.

2. According to claim 1, a new energy dynamometer bench process water system intelligent control system is characterized in that: It also includes a temperature sensor, which is used to monitor the inlet and return water temperatures of each auxiliary equipment in the test area and send them to the PLC controller. The PLC controller is used to obtain the inlet and return water temperatures of each auxiliary equipment and send them to the host computer, and obtain the instructions sent by the host computer to control the refrigerator. The host computer is used to obtain the inlet and return water temperatures of each auxiliary equipment, calculate and generate instructions for the refrigerator and send them to the PLC controller.

3. According to claim 1, a new energy dynamometer bench process water system intelligent control system is characterized in that: The auxiliary equipment at least includes: a water thermostat, an oil thermostat, a fuel consumption meter and a hot and cold shock device.

4. According to claim 3, a new energy dynamometer bench process water system intelligent control system is characterized in that: The flow meter at least includes: a first flow meter, a second flow meter, a third flow meter and a fourth flow meter, and the first flow meter, the second flow meter, the third flow meter and the fourth flow meter are respectively connected to the water thermostat, the oil thermostat, the fuel consumption meter and the hot and cold shock device pipelines; the temperature sensor at least includes: a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth temperature sensor, and the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor are respectively arranged in the water thermostat, the oil thermostat, the fuel consumption meter and the hot and cold shock device pipelines; the high-efficiency water supply pump at least includes: a first water pump, a second water pump, a third water pump, a fourth water pump and a fifth water pump, and the first water pump, the second water pump, the third water pump, the fourth water pump and the fifth water pump are respectively connected to the flow meter pipelines.

5. According to claim 4, a new energy dynamometer bench process water system intelligent control system is characterized in that: The refrigerator comprises at least: a first refrigerator and four second refrigerators, the cooling capacity of the first refrigerator is X KW, the cooling capacity of the four second refrigerators is Y KW, X and Y are both positive numbers and X<Y.

6. A new energy dynamometer bench process water system intelligent control method, applied to the host computer of a new energy dynamometer bench process water system intelligent control system according to any one of claims 1 to 5, characterized in that: include: Respectively obtain the initial first chilled water flow, the initial second chilled water flow, the initial third chilled water flow and the initial fourth chilled water flow in the first flow meter, the second flow meter, the third flow meter and the fourth flow meter, and obtain the total chilled water flow used in the current test area by adding the initial first chilled water flow, the initial second chilled water flow, the initial third chilled water flow and the initial fourth chilled water flow; The number of water pumps turned on is obtained based on the total chilled water flow and the flow of a single water pump used in the current test area, and a water pump turn-on instruction is generated based on the number of water pumps turned on and sent to the PLC controller.

7. The intelligent control method for the process water system of a new energy dynamometer bench according to claim 6 is characterized in that: The number of water pumps to be turned on is determined based on the total flow of the water pumps being greater than or equal to the total chilled water flow used in the current test area.

8. The intelligent control method for the process water system of a new energy dynamometer bench according to claim 6 is characterized in that: Also includes: After turning on the corresponding water pump, the real-time first chilled water flow, real-time second chilled water flow, real-time third chilled water flow and real-time fourth chilled water flow are obtained respectively, and the real-time total chilled water flow used in the current test area is determined according to the real-time first chilled water flow, real-time second chilled water flow, real-time third chilled water flow and real-time fourth chilled water flow, and the number of water pumps on / off is obtained according to the real-time total chilled water flow used in the current test area, and the water pump on / off instruction is generated according to the water pump on / off number and sent to the PLC controller.

9. The intelligent control method for the process water system of a new energy dynamometer bench according to claim 6 is characterized in that: Also includes: According to the initial first chilled water flow rate, the initial second chilled water flow rate, the initial third chilled water flow rate and the initial fourth chilled water flow rate and density, respectively determine the chilled water mass flowing through the water thermostat per unit time, the chilled water mass flowing through the oil thermostat per unit time, the chilled water mass flowing through the fuel consumption meter per unit time and the chilled water mass flowing through the cold and hot shock device per unit time; According to the mass of chilled water flowing through the water thermostat in unit time, the mass of chilled water flowing through the oil thermostat in unit time, the mass of chilled water flowing through the fuel consumption meter in unit time, the mass of chilled water flowing through the cold and hot shock device in unit time, the specific heat capacity and the corresponding inlet and return water temperature difference, the heat exchange of the water thermostat, the heat exchange of the oil thermostat, the heat exchange of the fuel consumption meter and the heat exchange of the cold and hot shock device are obtained respectively; The total heat exchange is obtained according to the heat exchange of the water thermostat, the heat exchange of the oil thermostat, the heat exchange of the fuel consumption meter and the heat exchange of the hot and cold shock device; A refrigerator start instruction is obtained according to the total heat exchange and sent to a PLC controller.

10. The intelligent control method for the process water system of a new energy dynamometer bench according to claim 6 is characterized in that: The step of obtaining a refrigerator start instruction according to the total heat exchange comprises: When the total heat exchange amount is ≤X, the refrigerator start instruction is to start the first refrigerator; When X<total heat exchange≤Y, the refrigerator start instruction is to start the second refrigerator; When Y<total heat exchange amount≤, the refrigerator start instruction is to start the first refrigerator and the second refrigerator; When X+Y<the total heat exchange amount, the refrigerator start instruction is to start at least two second refrigerators.

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