Monitoring system and monitoring method for power plant operating conditions

Abstract

A monitoring system and method for power plant operating conditions includes: a module running on a WIFI switch within the WLAN, comprising an acquisition module, a viewing module, a serialization module, and a transmission module; the acquisition module is used to acquire information packets of operating condition information transmitted by the previous WIFI switch via RTP mode from a local operating device, and to perform decoding processing on the information packets of the operating condition information to construct source operating condition information; effectively avoiding the defect of unstable transmission when the local operating device transmits operating condition information to a remote monitoring device using RTP mode in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of power plant monitoring, and in particular to a monitoring system and a monitoring method for power plant operating conditions. Background Art

[0002] Power plants are generally factories that use combustibles as fuel to produce electricity. From the perspective of energy conversion, the basic process is: chemical energy → thermal energy → mechanical energy → electrical energy. Most countries in the world mainly use coal as the main fuel for power plants. Pulverized coal and air are suspended in the furnace space of the power plant boiler and undergo intense mixing and oxidation combustion, and the chemical energy of the fuel is converted into thermal energy. The thermal energy is transmitted to the high-pressure water medium in the boiler in the form of radiation and thermal convection, and the water is preheated, vaporized and superheated in stages, so that the water becomes high-pressure and high-temperature superheated steam. The steam is sent to the steam turbine in a controlled manner through the pipeline, and the steam turbine realizes the conversion of steam thermal energy into rotational mechanical energy. The high-speed rotating steam turbine rotor drives the generator through the coupling to generate electrical energy, and the electrical energy is boosted by the power plant electrical system and sent to the power grid.

[0003] For the convenience of management and control, a local operation device and a remote monitoring device are often installed in a WLAN close to the power plant. In this way, the operating information of the power plant obtained by the local operation device can be transmitted to the remote monitoring device. The information transmission mode of the power plant's operating information is used to achieve the standard of connecting the local operation device and the remote monitoring device to the WLAN. The information transmission mode includes FTP mode and RTP mode.

[0004] Before transmitting the working condition information, the FTP mode needs to construct a link, which takes more time. In addition, when transmitting the working condition information, it also carries the judgment standards, retransmission standards, congestion control standards, etc., which will take a lot of time. In addition, the overall transmission link must be maintained on each device, and each link will use circuit components such as the device's controller and main memory.

[0005] The RTP mode is a non-linked working condition information transmission mode, and the working condition information transmission is unstable; defects may occur during the working condition information transmission, such as: because RTP is not linked, the local operating device and the remote monitoring device that perform working condition information transmission of RTP do not have a judgment on the transmitted working condition information. The local operating device is only used to transmit the working condition information, and the remote monitoring device is only used to receive the working condition information. There is no judgment mechanism; under the condition of WLAN transmission, if the local operating device and the remote monitoring device are not functional enough and the WLAN is in poor condition, the RTP mode is a non-linked mode, and the working condition information transmitted according to the RTP mode will experience message loss; in addition, when the RTP working condition information message is transmitted in the WLAN, the sequence of the working condition information often changes. The working condition information sequence of the remote monitoring device and the working condition information sequence of the local operating device are out of order, so the remote monitoring device cannot correctly collect and restore the original working condition information, which will make the working condition information transmission impossible.

[0006] Because RTP does not have the stability standard of FTP, when transmitting working information, if the WLAN function is poor, message loss will often occur, so RTP is unstable; however, the RTP mode has its own characteristics, high: RTP does not have the standards of FTP such as request connection, judgment, temporary storage, retransmission, and congestion control. RTP is a non-responsive transmission mode, so it is very efficient in transmitting working information.

[0007] The current operating information transmission mode has a long transmission cycle in the FTP mode and uses a lot of circuit components for operation; the RTP mode has efficient transmission but is not stable; the operating conditions of the power plant are mainly for the power plant's instantaneous load, daily power generation, monthly power generation, annual power generation and instant coal consumption. Summary of the invention

[0008] To solve the above problems, the present invention provides a monitoring system and method for power plant operating conditions, which effectively avoids the defect of unstable transmission using RTP mode when a local operating device transmits operating condition information to a remote monitoring device in the prior art.

[0009] To overcome the deficiencies in the prior art, the present invention provides a solution for a monitoring system and method for power plant operating conditions, as follows:

[0010] A monitoring system for power plant operating conditions, comprising:

[0011] The local operation device and the remote monitoring device of the power plant in the WLAN are connected to each other through a transmission link formed by a WIFI switch in the WLAN; both the local operation device and the remote monitoring device of the power plant can be laptops or PCs. Both the local operation device and the remote monitoring device of the power plant have WIFI modules.

[0012] The local operation device of the power plant is used to process the on-site information of the power plant to obtain the power plant's operating condition information such as the power plant's instantaneous load, daily power generation, monthly power generation, annual power generation and instantaneous coal consumption, and transmit it to the remote monitoring device in real time;

[0013] The remote monitoring device is used to receive the operating condition information of the power plant and then display it to express the change of the operating condition information;

[0014] The modules running on the WIFI switch in the WLAN include an acquisition module, a viewing module, a serialization module and a transmission module;

[0015] The acquisition module is used to acquire the information message of the working condition information transmitted by the previous WIFI switch via the local operation device in RTP mode, perform decoding processing on the information message of the working condition information, and construct the source working condition information;

[0016] The viewing module is used to view the working condition information capacity of the source working condition information, and if the working condition information capacity of the source working condition information is higher than the information message capacity of the working condition information set in advance, the source working condition information is segmented using the information message capacity of the working condition information set in advance as a standard, and an information message after the segmented working condition information is constructed;

[0017] The serialization module is used to perform serialization on the information message after the divided working condition information to obtain a sequence code, and to add a message header for marking the type of the information message after the divided working condition information to the information message after the divided working condition information;

[0018] The transmission module is used to transmit an information message for listening to temporarily stored working condition information toward a subsequent WIFI switch. The residual temporary storage capacity for receiving working condition information fed back to the subsequent WIFI switch can receive the information message after the overall segmented working condition information is received. The information message after the overall segmented working condition information is added to the first-in-first-out buffer for transmission via the RTP mode to transmit it to the subsequent WIFI switch. Here, the residual temporary storage capacity for receiving working condition information is the residual capacity obtained by excluding the temporary storage capacity for receiving working condition information from the first-in-first-out buffer capacity for receiving.

[0019] Furthermore, the method of displaying the received power plant operating condition information to express the change of the operating condition information includes:

[0020] The instantaneous load of the power plant in the operating information of the power plant is analyzed to obtain the effective instantaneous load and the current time point, and then the coordinate point formed by using the current time point as the horizontal coordinate value of the rectangular coordinate system one on the display interface of the remote monitoring device and the effective instantaneous load as the vertical coordinate value of the rectangular coordinate system one is displayed on the rectangular coordinate system one; in this way, the change status of the effective instantaneous load can be formed on the rectangular coordinate system one according to the sequence of time points.

[0021] The real-time coal consumption in the operating information of the power plant is analyzed to obtain the effective real-time coal consumption and the current time point, and then the current time point is used as the horizontal coordinate value of the rectangular coordinate system 2 on the display interface of the off-site monitoring device and the effective real-time coal consumption is used as the vertical coordinate value of the rectangular coordinate system 2 to form a coordinate point which is displayed on the rectangular coordinate system 2; in this way, the change of the effective real-time coal consumption can be formed on the rectangular coordinate system 2 according to the sequence of time points.

[0022] The display interface also has an arc-shaped scale dial 1 with scale values ​​for measuring the effective instantaneous load. A pointer 1 is provided below the arc-shaped scale dial 1. When the instantaneous load of the power plant in the operating condition information of the power plant is analyzed to obtain the effective instantaneous load, the pointer 1 is moved to the scale value position of the arc-shaped scale dial 1 that is consistent with the effective instantaneous load; in this way, the change status of the effective instantaneous load can be intuitively obtained based on the movement status of the pointer 1.

[0023] The display interface also has an arc-shaped scale dial 2 with scale values ​​for measuring the effective daily power generation. A pointer 2 is provided below the arc-shaped scale dial 2. When the daily power generation of the power plant in the operating condition information of the power plant is analyzed to obtain the effective daily power generation, the pointer 2 is moved to the scale value position of the arc-shaped scale dial 2 that is consistent with the effective daily power generation. In this way, the change status of the effective daily power generation can be intuitively obtained based on the movement status of the pointer 2.

[0024] The display interface is also provided with an arc-shaped scale plate three, on which scale values ​​for measuring the effective monthly power generation are provided, and a pointer three is provided below the arc-shaped scale plate three. When the monthly power generation of the power plant in the operating condition information of the power plant is analyzed to obtain the effective monthly power generation, the pointer three is moved to the scale value position of the arc-shaped scale plate three that is consistent with the effective daily power generation; in this way, the change status of the effective daily power generation can be intuitively obtained according to the movement status of the pointer three.

[0025] The display interface is also provided with an arc-shaped scale plate 4, which has scale values ​​for measuring the effective annual power generation. A pointer 4 is provided below the arc-shaped scale plate 4. When the annual power generation of the power plant in the operating information of the power plant is analyzed to obtain the effective annual power generation, the pointer 4 is moved to the scale value position of the arc-shaped scale plate 4 that is consistent with the effective annual power generation. In this way, the change of the effective annual power generation can be intuitively obtained according to the movement of the pointer 4.

[0026] The monitoring method of the monitoring system for power plant operating conditions includes:

[0027] Step 1: Start the monitoring software in the remote monitoring device, and a login interface pops up. The monitoring personnel enter the account and password on the login interface and execute the main interface after confirming that they are correct;

[0028] Step 2: After the monitoring personnel clicks the button for monitoring the operating condition information on the main interface, the operating condition information transmission instruction is transmitted to the local operation device of the power plant;

[0029] Step 3, after receiving the operating condition information transmission instruction, the local operation device of the power plant transmits the power plant's operating condition information such as the power plant's instant load, daily power generation, monthly power generation, annual power generation and instant coal consumption obtained after processing the power plant's on-site information in combination with the RTP mode to the remote monitoring device in real time;

[0030] Step 4, after receiving the operating condition information of the power plant, the remote monitoring device performs display to express the change of the operating condition information;

[0031] The step 3 specifically includes:

[0032] Step 3-1, the current WIFI switch obtains the information message of the working condition information transmitted by the previous WIFI switch via the local operation device in RTP mode, performs decoding processing on the information message of the working condition information, and constructs the source working condition information;

[0033] Step 3-2, checking the working condition information capacity of the source working condition information, and if the working condition information capacity of the source working condition information is higher than the information message capacity of the working condition information set in advance, dividing the source working condition information using the information message capacity of the working condition information set in advance as a standard, and constructing the information message after the divided working condition information;

[0034] Preferably, the source operating condition information can be segmented into information messages after segmenting the operating condition information, where X is the quotient of the capacity of the source operating condition information divided by the information message capacity of the pre-set operating condition information, and the quotient is processed by a Gaussian function to obtain an integer, and in addition, the capacity of the information message after the first X-1 segmented operating condition information is the information message capacity of the pre-set operating condition information, and the capacity of the information message after the last segmented operating condition information is not higher than the information message capacity of the pre-set operating condition information, and X is an integer greater than zero.

[0035] Step 3-3, serializing the information message after the divided working condition information to obtain a sequence code, and adding a message header for marking the type of the information message after the divided working condition information to the information message after the divided working condition information;

[0036] Step 3-4, transmitting an information message for listening to the temporary storage of working condition information to the next WIFI switch, and the residual temporary storage capacity for receiving the working condition information fed back to the next WIFI switch can receive the information message after the overall segmentation of the working condition information, and adding the overall segmentation of the working condition information to the first-in-first-out buffer for transmission through the RTP mode to transmit to the next WIFI switch, where the residual temporary storage capacity for receiving the working condition information is the residual capacity of the temporary storage capacity for receiving the working condition information minus the first-in-first-out buffer capacity for receiving;

[0037] Furthermore, the first-in first-out buffer for transmission can be added in a sequence from high to low according to the sequence code of the information message after the working condition information is divided;

[0038] The first-in-first-out buffer for transmission has two kinds of information messages after the segmentation of the working condition information, one kind is the information message after the segmentation of the working condition information that has not been transmitted, and the other kind is the information message after the segmentation of the working condition information that has been transmitted but not received by the next WIFI switch after the segmentation of the working condition information that has been determined to obtain the corresponding sequence code. For the information message after the segmentation of the working condition information that has been transmitted but not received by the next WIFI switch after the segmentation of the working condition information that has been determined to obtain the corresponding sequence code, when the current WIFI switch does not receive the information message after the segmentation of the working condition information that has been transmitted by the next WIFI switch within a pre-set time interval, the information message after the segmentation of the working condition information with the corresponding sequence code is transmitted again to the next WIFI switch , or, for an information message after a target sequence code is segmented into working condition information, when the current WIFI switch still does not receive the corresponding determination information of the information message after the target sequence code is segmented into working condition information when the information of the information message after the determination of the corresponding sequence code is segmented into working condition information transmitted by the subsequent WIFI switch that is a preset number away, the information message after the target sequence code is segmented into working condition information is transmitted again to the subsequent WIFI switch, or, when the current WIFI switch receives the information message after the segmented working condition information of the corresponding sequence code transmitted by the subsequent WIFI switch but does not receive the information message, the information message after the corresponding sequence code is segmented into working condition information is transmitted again to the subsequent WIFI switch.

[0039] After adding the information message after the entire segmentation working condition information to the first-in-first-out buffer for transmission, the information message after the segmentation working condition information is transmitted to the next WIFI switch in a manner consistent with the RTP mode working condition information transmission method, that is, the information message after the segmentation working condition information is directly transmitted to the next WIFI switch.

[0040] In the present invention, when there is an information message of working condition information that has not been received by the subsequent WIFI switch, the information message after the working condition information is divided by the corresponding sequence code is transmitted to the subsequent WIFI switch again.

[0041] A method for determining a WIFI switch in a WLAN having a plurality of WIFI switches includes:

[0042] A-1, according to the mark of the destination WIFI switch, determine the WIFI switch with the largest attribute distance from the destination WIFI switch, and serve as the first WIFI switch of the destination WIFI switch;

[0043] The attributes of the WIFI switch are determined at the following levels:

[0044] 4. The traceability of the information message of the working condition information, that is, whether the WIFI switch can track and infer the information message of the working condition information, and whether the attribute information of the information message of the working condition information can be obtained. The quantity of the said level can be one-fourth of the total quantity of the two pairs of levels, and one-twentieth can be reduced if one condition is met;

[0045] 5. The controllability of the WIFI switch. The controllability of the WIFI switch is determined as command activation control, proxy server control, pop-up attack times, hacker attack times or USB read and write control. The amount of the level can be one-fourth of the total amount of the two levels. The adjacent levels of the control degree are reduced by one-twentieth. The amount corresponding to the first control level is one-fourth, for example, the amount corresponding to command activation control is one-fourth, and the amount corresponding to USB read and write control is one-twentieth;

[0046] 6. The difficulty of parsing working condition information in the WIFI switch lies in the following two areas:

[0047] One is whether the smoothness of WLAN information transmission meets the pre-set conditions;

[0048] The second is whether the read / write performance of the WIFI switch meets the pre-set condition 2. The pre-set condition is such as whether the number of other WIFI switches connected to the WIFI switch is higher than the pre-set target quantity. The pre-set condition 2 is such as whether the read / write volume of the WIFI switch in the pre-set time interval is higher than the pre-set target quantity. The starting volume of the level is one quarter. Once the condition of the first area is met, it is reduced by one twentieth under the starting volume.

[0049] The WIFI switch can be reversed and valued based on historical information. When setting the value, the WIFI switch can be reversed and valued according to the frequency of the power plant's operating information such as the power plant's instant load, daily power generation, monthly power generation, annual power generation or instant coal consumption in the WIFI switch.

[0050] Here, the total amount of the attribute amount of the WIFI switch is one, that is, the corresponding amount of the attribute amounts corresponding to the two pairs of levels is one fourth.

[0051] A-2, the WIFI switch with the second highest distance between the attribute quantity of the first A WIFI switches of the destination WIFI switch is used as the first A WIFI switches of the destination, where A is a positive integer.

[0052] The WIFI switch with the second highest distance between the attribute quantities of the first B WIFI switches of the destination is used as the first B WIFI switches of the destination; here, B is a positive integer greater than one and not greater than T, T is the number of WIFI switches through which the working condition information passes, and the distance between the attribute quantities is the result of taking the positive value of the quantity obtained by subtracting the attribute quantities of two WIFI switches.

[0053] Furthermore, the method of displaying the received power plant operating condition information to express the change of the operating condition information includes:

[0054] The instantaneous load of the power plant in the operating information of the power plant is analyzed to obtain the effective instantaneous load and the current time point, and then the coordinate point formed by using the current time point as the horizontal coordinate value of the rectangular coordinate system one on the display interface of the remote monitoring device and the effective instantaneous load as the vertical coordinate value of the rectangular coordinate system one is displayed on the rectangular coordinate system one; in this way, the change status of the effective instantaneous load can be formed on the rectangular coordinate system one according to the sequence of time points.

[0055] The real-time coal consumption in the operating information of the power plant is analyzed to obtain the effective real-time coal consumption and the current time point, and then the current time point is used as the horizontal coordinate value of the rectangular coordinate system 2 on the display interface of the off-site monitoring device and the effective real-time coal consumption is used as the vertical coordinate value of the rectangular coordinate system 2 to form a coordinate point which is displayed on the rectangular coordinate system 2; in this way, the change of the effective real-time coal consumption can be formed on the rectangular coordinate system 2 according to the sequence of time points.

[0056] The display interface also has an arc-shaped scale dial 1 with scale values ​​for measuring the effective instantaneous load. A pointer 1 is provided below the arc-shaped scale dial 1. When the instantaneous load of the power plant in the operating condition information of the power plant is analyzed to obtain the effective instantaneous load, the pointer 1 is moved to the scale value position of the arc-shaped scale dial 1 that is consistent with the effective instantaneous load; in this way, the change status of the effective instantaneous load can be intuitively obtained based on the movement status of the pointer 1.

[0057] The display interface also has an arc-shaped scale dial 2 with scale values ​​for measuring the effective daily power generation. A pointer 2 is provided below the arc-shaped scale dial 2. When the daily power generation of the power plant in the operating condition information of the power plant is analyzed to obtain the effective daily power generation, the pointer 2 is moved to the scale value position of the arc-shaped scale dial 2 that is consistent with the effective daily power generation. In this way, the change status of the effective daily power generation can be intuitively obtained based on the movement status of the pointer 2.

[0058] The display interface is also provided with an arc-shaped scale plate three, on which scale values ​​for measuring the effective monthly power generation are provided, and a pointer three is provided below the arc-shaped scale plate three. When the monthly power generation of the power plant in the operating condition information of the power plant is analyzed to obtain the effective monthly power generation, the pointer three is moved to the scale value position of the arc-shaped scale plate three that is consistent with the effective daily power generation; in this way, the change status of the effective daily power generation can be intuitively obtained according to the movement status of the pointer three.

[0059] The display interface is also provided with an arc-shaped scale plate 4, which has scale values ​​for measuring the effective annual power generation. A pointer 4 is provided below the arc-shaped scale plate 4. When the annual power generation of the power plant in the operating information of the power plant is analyzed to obtain the effective annual power generation, the pointer 4 is moved to the scale value position of the arc-shaped scale plate 4 that is consistent with the effective annual power generation. In this way, the change of the effective annual power generation can be intuitively obtained according to the movement of the pointer 4.

[0060] The beneficial effects of the present invention are:

[0061] The present invention can efficiently transmit the working condition information and make the transmission process smooth through the WLAN working condition information transmission method; it effectively avoids the defect of unstable transmission using the RTP mode when the local operating device transmits the working condition information to the remote monitoring device in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 It is a structural diagram of the monitoring system for power plant operating conditions of the present invention.

[0063] Figure 2 It is an overall flow chart of the monitoring method of the monitoring system for power plant operating conditions of the present invention. DETAILED DESCRIPTION

[0064] The present invention will be preferably described below in conjunction with the accompanying drawings and embodiments.

[0065] like Figure 1-Figure 2 As shown in the figure, the monitoring system for power plant conditions includes:

[0066] The local operation device and the remote monitoring device of the power plant in the WLAN are connected to each other through a transmission link formed by a WIFI switch in the WLAN; both the local operation device and the remote monitoring device of the power plant can be laptops or PCs. Both the local operation device and the remote monitoring device of the power plant have WIFI modules.

[0067] The local operation device of the power plant is used to process the power plant's on-site information to obtain the power plant's operating information such as the power plant's instantaneous load, daily power generation, monthly power generation, annual power generation and instantaneous coal consumption, and transmit it to the remote monitoring device in real time; the power plant information includes the power plant's installed capacity, the operating model, the instantaneous power generation of the thermal power units read by the power meter on the power plant site, and the measured total amount of coal entering the furnace. The local operation device of the power plant obtains the effective daily power generation by multiplying the installed capacity of the power plant by the interval from zero o'clock on the first day of the month to the current time point, the local operation device of the power plant obtains the effective monthly power generation by multiplying the installed capacity of the power plant by the interval from zero o'clock on the first day of the month to the current time point, the local operation device of the power plant obtains the effective annual power generation by multiplying the installed capacity of the power plant by the interval from zero o'clock on the first day of January of the year to the current time point, the local operation device of the power plant derives the effective instantaneous load based on the operating model, and the local operation device of the power plant obtains the effective instantaneous coal consumption by dividing the measured total amount of coal entering the furnace by the instantaneous power generation of the thermal power units. The effective instantaneous load plus the current time point, the effective daily power generation plus the current time point, the effective monthly power generation plus the current time point, the effective annual power generation plus the current time point and the effective instantaneous coal consumption plus the current time point respectively serve as the power plant's instantaneous load, daily power generation, monthly power generation, annual power generation and instantaneous coal consumption, etc., which are the power plant's operating information.

[0068] The remote monitoring device is used to receive the operating condition information of the power plant and then display it to express the change of the operating condition information;

[0069] The modules running on the WIFI switch in the WLAN include an acquisition module, a viewing module, a serialization module and a transmission module;

[0070] The acquisition module is used to acquire the information message of the working condition information transmitted by the previous WIFI switch via the local operation device in RTP mode, perform decoding processing on the information message of the working condition information, and construct the source working condition information;

[0071] The viewing module is used to view the working condition information capacity of the source working condition information, and if the working condition information capacity of the source working condition information is higher than the information message capacity of the working condition information set in advance, the source working condition information is segmented using the information message capacity of the working condition information set in advance as a standard, and an information message after the segmented working condition information is constructed;

[0072] The serialization module is used to perform serialization on the information message after the divided working condition information to obtain a sequence code, and to add a message header for marking the type of the information message after the divided working condition information to the information message after the divided working condition information;

[0073] The transmission module is used to transmit an information message for listening to temporarily stored working condition information toward a subsequent WIFI switch. The residual temporary storage capacity for receiving working condition information fed back to the subsequent WIFI switch can receive the information message after the overall segmented working condition information is received. The information message after the overall segmented working condition information is added to the first-in-first-out buffer for transmission via the RTP mode to transmit it to the subsequent WIFI switch. Here, the residual temporary storage capacity for receiving working condition information is the residual capacity obtained by excluding the temporary storage capacity for receiving working condition information from the first-in-first-out buffer capacity for receiving.

[0074] Furthermore, the method of displaying the received power plant operating condition information to express the change of the operating condition information includes:

[0075] The instantaneous load of the power plant in the operating information of the power plant is analyzed to obtain the effective instantaneous load and the current time point, and then the coordinate point formed by using the current time point as the horizontal coordinate value of the rectangular coordinate system one on the display interface of the remote monitoring device and the effective instantaneous load as the vertical coordinate value of the rectangular coordinate system one is displayed on the rectangular coordinate system one; in this way, the change status of the effective instantaneous load can be formed on the rectangular coordinate system one according to the sequence of time points.

[0076] The real-time coal consumption in the operating information of the power plant is analyzed to obtain the effective real-time coal consumption and the current time point, and then the current time point is used as the horizontal coordinate value of the rectangular coordinate system 2 on the display interface of the off-site monitoring device and the effective real-time coal consumption is used as the vertical coordinate value of the rectangular coordinate system 2 to form a coordinate point which is displayed on the rectangular coordinate system 2; in this way, the change of the effective real-time coal consumption can be formed on the rectangular coordinate system 2 according to the sequence of time points.

[0077] The display interface also has an arc-shaped scale dial 1 with scale values ​​for measuring the effective instantaneous load. A pointer 1 is provided below the arc-shaped scale dial 1. When the instantaneous load of the power plant in the operating condition information of the power plant is analyzed to obtain the effective instantaneous load, the pointer 1 is moved to the scale value position of the arc-shaped scale dial 1 that is consistent with the effective instantaneous load; in this way, the change status of the effective instantaneous load can be intuitively obtained based on the movement status of the pointer 1.

[0078] The display interface also has an arc-shaped scale dial 2 with scale values ​​for measuring the effective daily power generation. A pointer 2 is provided below the arc-shaped scale dial 2. When the daily power generation of the power plant in the operating condition information of the power plant is analyzed to obtain the effective daily power generation, the pointer 2 is moved to the scale value position of the arc-shaped scale dial 2 that is consistent with the effective daily power generation. In this way, the change status of the effective daily power generation can be intuitively obtained based on the movement status of the pointer 2.

[0079] The display interface is also provided with an arc-shaped scale plate three, on which scale values ​​for measuring the effective monthly power generation are provided, and a pointer three is provided below the arc-shaped scale plate three. When the monthly power generation of the power plant in the operating condition information of the power plant is analyzed to obtain the effective monthly power generation, the pointer three is moved to the scale value position of the arc-shaped scale plate three that is consistent with the effective daily power generation; in this way, the change status of the effective daily power generation can be intuitively obtained according to the movement status of the pointer three.

[0080] The display interface is also provided with an arc-shaped scale plate 4, which has scale values ​​for measuring the effective annual power generation. A pointer 4 is provided below the arc-shaped scale plate 4. When the annual power generation of the power plant in the operating information of the power plant is analyzed to obtain the effective annual power generation, the pointer 4 is moved to the scale value position of the arc-shaped scale plate 4 that is consistent with the effective annual power generation. In this way, the change of the effective annual power generation can be intuitively obtained according to the movement of the pointer 4.

[0081] The monitoring method of the monitoring system for power plant operating conditions includes:

[0082] Step 1, start the monitoring software in the remote monitoring device, a login interface pops up, the monitoring personnel enter the account number and password on the login interface and execute the main interface after it is determined to be correct; the account number and password information are set in the remote monitoring device in advance, so that after the monitoring personnel enter the account number and password on the login interface, the entered account number and password are compared with the account number and password information set in the remote monitoring device. If the entered account number and password are consistent with the account number and password information set in the remote monitoring device, it is determined to be correct.

[0083] Step 2: After the monitoring personnel clicks the button for monitoring the operating condition information on the main interface, the operating condition information transmission instruction is transmitted to the local operation device of the power plant;

[0084] Step 3, after receiving the operating information transmission instruction, the local operation device of the power plant transmits the operating information of the power plant such as the instantaneous load, daily power generation, monthly power generation, annual power generation and instantaneous coal consumption obtained after processing the on-site information of the power plant in combination with the RTP mode to the remote monitoring device in real time; the power plant information includes the installed capacity of the power plant, the operating model, the instantaneous power generation of the thermal power units read by the power meter on the site of the power plant, and the measured total amount of coal entering the furnace. The local operation device of the power plant multiplies the installed capacity of the power plant by the time from zero o'clock on the day to the current time. The effective daily power generation is obtained by multiplying the interval time of the points, the local operation device of the power plant obtains the effective monthly power generation based on the installed capacity of the power plant by the interval time from zero o'clock on the first day of the month to the current time point, the local operation device of the power plant obtains the effective annual power generation based on the installed capacity of the power plant by the interval time from zero o'clock on the first day of January of the year to the current time point, the local operation device of the power plant derives the effective instantaneous load based on the operating condition model, and the local operation device of the power plant divides the measured total amount of coal entering the furnace by the instantaneous power generation power of the thermal power unit to obtain the effective instantaneous coal consumption. The effective instantaneous load plus the current time point, the effective daily power generation plus the current time point, the effective monthly power generation plus the current time point, the effective annual power generation plus the current time point and the effective instantaneous coal consumption plus the current time point serve as the power plant operating condition information such as the instantaneous load, daily power generation, monthly power generation, annual power generation and instantaneous coal consumption of the power plant respectively.

[0085] Step 4, after receiving the operating condition information of the power plant, the remote monitoring device performs display to express the change of the operating condition information;

[0086] The step 3 specifically includes:

[0087] Step 3-1, the current WIFI switch obtains the information message of the working condition information transmitted by the previous WIFI switch via the local operation device in RTP mode, performs decoding processing on the information message of the working condition information, and constructs the source working condition information;

[0088] The working condition information transmission method of the WLAN with several WIFI switches based on the RTP transmission mode of the present invention can be applied to the WLAN with several WIFI switches; the WLAN with several WIFI switches is a cluster formed by several WIFI switches, and when performing working condition information transmission, the WIFI switches transmitting working condition information are connected in series to form the WLAN with several WIFI switches according to the sequence of the WIFI switches transmitting working condition information; the working condition information transmission method between three adjacent sets of WIFI switches in the WLAN with several WIFI switches, that is, the previous WIFI switch, the current WIFI switch and the next WIFI switch, represents the working condition information transmission method in the WLAN with several WIFI switches, just like the current WIFI switch can serve as the previous WIFI switch of the next WIFI switch, and can also serve as the next WIFI switch of the previous WIFI switch, therefore, it is only necessary to perform the description of the working condition information transmission method between the three adjacent sets of WIFI switches in the WLAN with several WIFI switches, so that the working condition information transmission method in the WLAN with several WIFI switches is clear.

[0089] The following is a further description of the working condition information transmission method between three adjacent WIFI switches:

[0090] Initially, the current WIFI switch obtains the information message of the working condition information transmitted by the previous WIFI switch via the RTP mode, performs decoding processing on the information message of the working condition information, and constructs the source working condition information; and how the previous WIFI switch transmits the information message of the working condition information to the current WIFI switch refers to the way in which the current WIFI switch transmits the information message of the working condition information to the next WIFI switch; when the current WIFI switch receives the information message of the working condition information transmitted by the previous WIFI switch, it performs decoding processing on the information message of the working condition information, and constructs the source working condition information, which is the working condition information transmitted by the local operating device to the WLAN having several WIFI switches and to be transmitted within the WLAN having several WIFI switches.

[0091] Step 3-2, checking the working condition information capacity of the source working condition information, and if the working condition information capacity of the source working condition information is higher than the information message capacity of the working condition information set in advance, dividing the source working condition information using the information message capacity of the working condition information set in advance as a standard, and constructing the information message after the divided working condition information;

[0092] In the present invention, after the current WIFI switch receives the information message of the working condition information transmitted by the previous WIFI switch and decodes and constructs the source working condition information, the working condition information capacity of the source working condition information is checked, and if the working condition information capacity of the source working condition information is higher than the information message capacity of the working condition information set in advance, the source working condition information is segmented using the information message capacity of the working condition information set in advance as a standard to construct the information message after the segmentation of the working condition information; in the present invention, the WIFI switch executes the working condition information transmission in the form of an information message of the working condition information, and the information message of the working condition information is set to the maximum working condition information amount, that is, the capacity of the information message of the working condition information is set to the maximum capacity, that is, the information message capacity of the working condition information set in advance, such as 96*10 2 bits. Therefore, the working condition information capacity of the source working condition information is checked. If the working condition information capacity of the source working condition information is not higher than 96*10 If the source working condition information has a capacity of 96*10 2 bits, the source working condition information can be transmitted to the next WIFI switch in the format of a working condition information message. If the working condition information capacity of the source working condition information is higher than 96*10 2 bits, the source working condition information must be segmented using the 96*10 2 bits capacity as the standard.

[0093] Preferably, the source operating condition information can be segmented into information messages after segmenting the operating condition information, where X is the quotient of the capacity of the source operating condition information divided by the information message capacity of the pre-set operating condition information, and the quotient is processed by a Gaussian function to obtain an integer, and in addition, the capacity of the information message after the first X-1 segmented operating condition information is the information message capacity of the pre-set operating condition information, and the capacity of the information message after the last segmented operating condition information is not higher than the information message capacity of the pre-set operating condition information, and X is an integer greater than zero.

[0094] Just like the capacity of the source operating condition information is 9032 bits, because 9032 is lower than 96*10 2 , it is not necessary to perform segmentation on the source operating condition information; just like the capacity of the source operating condition information is 17032 bits, because 17032 is higher than 96*10 2 , and the quotient of 17032 divided by 96*10 2 , and then the integer obtained after the quotient is processed by the Gaussian function is two, 17032 is 96*10 2+7432, so it is necessary to perform segmentation on the source operating condition information and construct an information message after the segmented operating condition information, where the capacity of the information message of one operating condition information is 96*10 2 bits, and the capacity of the information message of the other operating condition information is 7432 bits.

[0095] Step 3-3, serialize the information message after the split operating condition information to obtain a serial code, and add a message header for marking the type of the information message after the split operating condition information; the type of information message is the power plant's instantaneous load, daily power generation, monthly power generation, annual power generation and instantaneous coal consumption.

[0096] In the present invention, after the source operating condition information is segmented, the information message after the segmented operating condition information can also be serialized to obtain a sequence code; preferably, for example, an information message after X segmented operating condition information is constructed, X is a positive integer, and the information message after the X segmented operating condition information can be reversely serialized to obtain a sequence code, the sequence code of the first information message after the segmented operating condition information is X minus one, and then the sequence codes of the information messages after the segmented operating condition information are successively reduced by one in sequence, then the sequence code of the last operating condition information is zero, and a message header for marking the information message of the operating condition information as the daily power generation type operating condition information is added to the information message after each segmented operating condition information, just like, the message header of the information message of the operating condition information of the daily power generation type can be standardized as QVTI.

[0097] Step 3-4, transmitting an information message for listening to the temporary storage of working condition information to the next WIFI switch, and the residual temporary storage capacity for receiving the working condition information fed back to the next WIFI switch can receive the information message after the overall segmentation of the working condition information, and adding the overall segmentation of the working condition information to the first-in-first-out buffer for transmission through the RTP mode to transmit to the next WIFI switch, where the residual temporary storage capacity for receiving the working condition information is the residual capacity of the temporary storage capacity for receiving the working condition information minus the first-in-first-out buffer capacity for receiving;

[0098] After completing the serialization of the message after the split working condition information is obtained, the message for listening to the temporary storage working condition information is sent to the next WIFI switch. For example, XBTL can be used as the message header of the message for listening to the temporary storage working condition information. XBTL is the message header of the message for announcing the temporary storage capacity working condition information. Then the message for listening to the temporary storage working condition information sent can be XBTL + the tag information of the current WIFI switch (such as the website address of the current WIFI switch, etc.). After receiving the message for listening to the temporary storage working condition information, the next WIFI switch uses its remaining information for receiving the working condition information. The temporary storage capacity of the working condition information is transmitted to the current WIFI switch, where the information message of the temporary storage capacity working condition information can be XBTL+the mark information of the next WIFI switch; the current WIFI switch determines whether the next WIFI switch can receive the information message after the overall split working condition information according to the residual temporary storage capacity for receiving the working condition information sent back by the next WIFI switch. If the information message after the overall split working condition information can be received, the information message after the overall split working condition information is added to the first-in-first-out buffer for transmission, and then transmitted to the next WIFI switch via the RTP mode.

[0099] Further, the information message after the split working condition information can be added to the first-in-first-out buffer for transmission in a sequence from high to low according to the sequence code of the information message after the split working condition information. For example, if the sequence code of the information message after the split working condition information is five, four, three, two, one, and zero, then the first-in-first-out buffer for transmission can be added in sequence according to the sequence code five, four, three, two, one, and zero, and the first-in-first-out buffer for transmission first transmits the information message after the split working condition information with the sequence code of five;

[0100] The first-in-first-out buffer for transmission has two kinds of information messages after the segmentation of the working condition information, one kind is the information message after the segmentation of the working condition information that has not been transmitted, and the other kind is the information message after the segmentation of the working condition information that has been transmitted but not received by the next WIFI switch after the segmentation of the working condition information that has been determined to obtain the corresponding sequence code. For the information message after the segmentation of the working condition information that has been transmitted but not received by the next WIFI switch after the segmentation of the working condition information that has been determined to obtain the corresponding sequence code, when the current WIFI switch does not receive the information message after the segmentation of the working condition information that has been transmitted by the next WIFI switch within a pre-set time interval, the information message after the segmentation of the working condition information with the corresponding sequence code is transmitted again to the next WIFI switch , or, facing a message after the information of the divided working condition information of a target sequence code, when the current WIFI switch still does not receive the corresponding determination information of the message after the divided working condition information of the target sequence code when the information of the message after the determination of the corresponding sequence code divided working condition information transmitted by the next WIFI switch is a preset number away, the message after the divided working condition information of the target sequence code is transmitted again to the next WIFI switch, or, when the current WIFI switch receives the information message after the divided working condition information of the next WIFI switch but does not receive the information message after the divided working condition information of the corresponding sequence code, the message after the divided working condition information of the corresponding sequence code is transmitted again to the next WIFI switch. The message after the divided working condition information of the corresponding sequence code is the message after the divided working condition information with the corresponding sequence code.

[0101] After adding the information message after the entire segmentation working condition information to the first-in-first-out buffer for transmission, the information message after the segmentation working condition information is transmitted to the next WIFI switch in a manner consistent with the RTP mode working condition information transmission method, that is, the information message after the segmentation working condition information is directly transmitted to the next WIFI switch.

[0102] The WLAN working condition information transmission method with a plurality of WIFI switches in the RTP transmission mode of the present invention can efficiently transmit working condition information and make the transmission process smooth.

[0103] Still using three sets of adjacent WIFI switches in a WLAN with several WIFI switches as an example, the previous WIFI switch transmits a message after the segmentation of the working condition information with a sequence code to the current WIFI switch. After receiving the message after the segmentation of the working condition information with a whole number, the current WIFI switch decodes and constructs the source working condition information. The current WIFI switch compares the capacity of the source working condition information with the message capacity of the working condition information set in advance to determine whether to segment the source working condition information. When the capacity of the source working condition information is higher than the message capacity of the working condition information set in advance, the source working condition information with the capacity higher than the message capacity of the working condition information set in advance is segmented, and a message after the segmentation of the working condition information is constructed. The message after the segmentation of the working condition information is serialized to obtain a sequence code, and then a message to intercept the temporarily stored working condition information is transmitted to the next WIFI switch. The information message is used to determine whether the next WIFI switch has sufficient area to receive the information message after the overall segmentation of the working condition information. After receiving the information message for listening to the temporary storage of the working condition information, the next WIFI switch transmits the information message of the working condition information with the remaining temporary storage capacity for receiving the working condition information to the current WIFI switch. After receiving the information message of the working condition information with the remaining temporary storage capacity for receiving the working condition information, the current WIFI switch determines that the remaining temporary storage capacity for receiving the working condition information can receive the information message after the overall segmentation of the working condition information. If the remaining temporary storage capacity for receiving the working condition information can receive the information message after the overall segmentation of the working condition information, the information message after the overall segmentation of the working condition information is added to the first-in-first-out buffer for transmission, and then the information message after the segmentation of the working condition information with the sequence code is transmitted to the next WIFI switch in the sequence from high to low.

[0104] In the present invention, when there is an information message of working condition information that has not been received by the subsequent WIFI switch, the information message after the working condition information is divided by the corresponding sequence code is transmitted to the subsequent WIFI switch again.

[0105] The WLAN working condition information transmission method with a plurality of WIFI switches in the RTP transmission mode of the present invention can efficiently transmit working condition information and make the transmission process smooth.

[0106] A method for determining a WIFI switch in a WLAN having a plurality of WIFI switches includes:

[0107] A-1, according to the mark of the destination WIFI switch, determine the WIFI switch with the largest attribute distance from the destination WIFI switch, and serve as the first WIFI switch of the destination WIFI switch; the destination WIFI switch is the WIFI switch to be determined.

[0108] The attributes of the WIFI switch are determined at the following levels:

[0109] 7. The traceability of the information message of the working condition information, that is, whether the WIFI switch can track and infer the information message of the working condition information, and whether the attribute information of the information message of the working condition information can be obtained. The quantity of the said level can be one-fourth of the total quantity of the two pairs of levels, and one-twentieth can be reduced if one condition is met;

[0110] 8. The controllability of the WIFI switch. The controllability of the WIFI switch is determined as command activation control, proxy server control, pop-up attack times, hacker attack times or USB read and write control. The amount of the level can be one-fourth of the total amount of the two levels. The adjacent levels of the control degree are reduced by one-twentieth. The amount corresponding to the first control level is one-fourth, for example, the amount corresponding to command activation control is one-fourth, and the amount corresponding to USB read and write control is one-twentieth;

[0111] 9. The difficulty of parsing working condition information in the WIFI switch lies in the following two areas:

[0112] One is whether the smoothness of WLAN information transmission meets the pre-set conditions;

[0113] The second is whether the read / write performance of the WIFI switch meets the pre-set condition 2. The pre-set condition is such as whether the number of other WIFI switches connected to the WIFI switch is higher than the pre-set target quantity. The pre-set condition 2 is such as whether the read / write volume of the WIFI switch in the pre-set time interval is higher than the pre-set target quantity. The starting volume of the level is one quarter. Once the condition of the first area is met, it is reduced by one twentieth under the starting volume.

[0114] The ability of the WIFI switch to be reversed is evaluated based on historical information. When evaluating, the ability of the WIFI switch to be reversed can be evaluated based on the frequency of occurrence of the power plant's operating information such as the power plant's instantaneous load, daily power generation, monthly power generation, annual power generation or instantaneous coal consumption in the WIFI switch. Reverse evaluation is the ability of the WIFI switch to be able to transmit the source of the operating information through it.

[0115] Here, the total amount of the attribute amount of the WIFI switch is one, that is, the corresponding amount of the attribute amounts corresponding to the two pairs of levels is one fourth.

[0116] A-2, the WIFI switch with the second highest distance between the attribute quantity of the first A WIFI switches of the destination WIFI switch is used as the first A WIFI switches of the destination, where A is a positive integer.

[0117] The WIFI switch with the second highest distance between the attribute quantities of the first B WIFI switches of the destination is used as the first B WIFI switches of the destination; here, B is a positive integer greater than one and not greater than T, T is the number of WIFI switches through which the working condition information passes, and the distance between the attribute quantities is the result of taking the positive value of the quantity obtained by subtracting the attribute quantities of two WIFI switches.

[0118] Therefore, the transmission sequence of the working condition information in the WLAN with several WIFI switches was determined, so that the working condition information can be transmitted efficiently and the transmission process can be smooth.

[0119] Furthermore, the method of displaying the received power plant operating condition information to express the change of the operating condition information includes:

[0120] The instantaneous load of the power plant in the operating information of the power plant is analyzed to obtain the effective instantaneous load and the current time point, and then the coordinate point formed by using the current time point as the horizontal coordinate value of the rectangular coordinate system one on the display interface of the remote monitoring device and the effective instantaneous load as the vertical coordinate value of the rectangular coordinate system one is displayed on the rectangular coordinate system one; in this way, the change status of the effective instantaneous load can be formed on the rectangular coordinate system one according to the sequence of time points.

[0121] The real-time coal consumption in the operating information of the power plant is analyzed to obtain the effective real-time coal consumption and the current time point, and then the current time point is used as the horizontal coordinate value of the rectangular coordinate system 2 on the display interface of the off-site monitoring device and the effective real-time coal consumption is used as the vertical coordinate value of the rectangular coordinate system 2 to form a coordinate point which is displayed on the rectangular coordinate system 2; in this way, the change of the effective real-time coal consumption can be formed on the rectangular coordinate system 2 according to the sequence of time points.

[0122] The display interface also has an arc-shaped scale dial 1 with scale values ​​for measuring the effective instantaneous load. A pointer 1 is provided below the arc-shaped scale dial 1. When the instantaneous load of the power plant in the operating condition information of the power plant is analyzed to obtain the effective instantaneous load, the pointer 1 is moved to the scale value position of the arc-shaped scale dial 1 that is consistent with the effective instantaneous load; in this way, the change status of the effective instantaneous load can be intuitively obtained based on the movement status of the pointer 1.

[0123] The display interface also has an arc-shaped scale dial 2 with scale values ​​for measuring the effective daily power generation. A pointer 2 is provided below the arc-shaped scale dial 2. When the daily power generation of the power plant in the operating condition information of the power plant is analyzed to obtain the effective daily power generation, the pointer 2 is moved to the scale value position of the arc-shaped scale dial 2 that is consistent with the effective daily power generation. In this way, the change status of the effective daily power generation can be intuitively obtained based on the movement status of the pointer 2.

[0124] The display interface is also provided with an arc-shaped scale plate three, on which scale values ​​for measuring the effective monthly power generation are provided, and a pointer three is provided below the arc-shaped scale plate three. When the monthly power generation of the power plant in the operating condition information of the power plant is analyzed to obtain the effective monthly power generation, the pointer three is moved to the scale value position of the arc-shaped scale plate three that is consistent with the effective daily power generation; in this way, the change status of the effective daily power generation can be intuitively obtained according to the movement status of the pointer three.

[0125] The display interface is also provided with an arc-shaped scale plate 4, which has scale values ​​for measuring the effective annual power generation. A pointer 4 is provided below the arc-shaped scale plate 4. When the annual power generation of the power plant in the operating information of the power plant is analyzed to obtain the effective annual power generation, the pointer 4 is moved to the scale value position of the arc-shaped scale plate 4 that is consistent with the effective annual power generation. In this way, the change of the effective annual power generation can be intuitively obtained according to the movement of the pointer 4.

[0126] The present invention has been described above in an illustrative manner using embodiments. It is obvious to those skilled in the art that the present disclosure is not limited to the embodiments described above, and various changes, modifications and substitutions may be made without departing from the scope of the present invention.

Claims

1. A monitoring system for power plant operating conditions, characterized in that: include: A local operation device and a remote monitoring device of a power plant in the WLAN, wherein the local operation device and the remote monitoring device of the power plant are communicatively connected via a transmission link formed by a WIFI switch in the WLAN; The local operation device of the power plant is used to process the on-site information of the power plant to obtain the power plant's operating condition information such as the power plant's instantaneous load, daily power generation, monthly power generation, annual power generation and instantaneous coal consumption, and transmit it to the remote monitoring device in real time; The remote monitoring device is used to receive the operating condition information of the power plant and then display it to express the change of the operating condition information; The modules running on the WIFI switch in the WLAN include an acquisition module, a viewing module, a serialization module and a transmission module; The acquisition module is used to acquire the information message of the working condition information transmitted by the previous WIFI switch via the local operation device in RTP mode, perform decoding processing on the information message of the working condition information, and construct the source working condition information; The viewing module is used to view the working condition information capacity of the source working condition information, and if the working condition information capacity of the source working condition information is higher than the information message capacity of the working condition information set in advance, the source working condition information is segmented using the information message capacity of the working condition information set in advance as a standard, and an information message after the segmented working condition information is constructed; The serialization module is used to perform serialization on the information message after the divided working condition information to obtain a sequence code, and to add a message header for marking the type of the information message after the divided working condition information to the information message after the divided working condition information; The transmission module is used to transmit an information message for listening to temporarily stored working condition information toward a subsequent WIFI switch. The residual temporary storage capacity for receiving working condition information fed back to the subsequent WIFI switch can receive the information message after the overall segmented working condition information is received. The information message after the overall segmented working condition information is added to the first-in-first-out buffer for transmission via the RTP mode to transmit it to the subsequent WIFI switch. Here, the residual temporary storage capacity for receiving working condition information is the residual capacity obtained by excluding the temporary storage capacity for receiving working condition information from the first-in-first-out buffer capacity for receiving.

2. The monitoring system for power plant operating conditions according to claim 1, characterized in that: The method of displaying the received power plant operating condition information to express the change of the operating condition information includes: The instantaneous load of the power plant in the operating information of the power plant is analyzed to obtain the effective instantaneous load and the current time point, and then the coordinate point formed by using the current time point as the abscissa value of the rectangular coordinate system one on the display interface of the remote monitoring device and using the effective instantaneous load as the ordinate value of the rectangular coordinate system one is displayed on the rectangular coordinate system one; The instant coal consumption in the operating information of the power plant is analyzed to obtain the effective instant coal consumption and the current time point, and then the current time point is used as the horizontal coordinate value of the rectangular coordinate system 2 on the display interface of the remote monitoring device and the effective instant coal consumption is used as the vertical coordinate value of the rectangular coordinate system 2 to form a coordinate point which is displayed on the rectangular coordinate system 2; The display interface is also provided with an arc-shaped scale plate 1, on which scale values ​​for measuring effective instantaneous load are provided, and a pointer 1 is provided below the arc-shaped scale plate 1. When the instantaneous load of the power plant in the operating condition information of the power plant is analyzed to obtain the effective instantaneous load, the pointer 1 is moved to the scale value position of the arc-shaped scale plate 1 that is consistent with the effective instantaneous load; The display interface is also provided with an arc-shaped scale plate 2, on which scale values ​​for measuring effective daily power generation are provided, and a pointer 2 is provided below the arc-shaped scale plate 2. When the daily power generation of the power plant in the operating condition information of the power plant is analyzed to obtain the effective daily power generation, the pointer 2 is moved to the scale value position of the arc-shaped scale plate 2 that is consistent with the effective daily power generation; The display interface is also provided with an arc-shaped scale plate 3, on which scale values ​​for measuring effective monthly power generation are provided, and a pointer 3 is provided below the arc-shaped scale plate 3. When the monthly power generation of the power plant in the operating condition information of the power plant is analyzed to obtain the effective monthly power generation, the pointer 3 is moved to the scale value position of the arc-shaped scale plate 3 that is consistent with the effective daily power generation; The display interface is also provided with an arc-shaped scale dial four with scale values ​​for measuring the effective annual power generation. A pointer four is provided below the arc-shaped scale dial four. When the annual power generation of the power plant in the operating condition information of the power plant is analyzed to obtain the effective annual power generation, the pointer four is moved to the scale value position of the arc-shaped scale dial four that is consistent with the effective annual power generation.

3. A monitoring method for a monitoring system for power plant operating conditions, characterized in that: include: Step 1: Start the monitoring software in the remote monitoring device, and a login interface pops up. The monitoring personnel enter the account and password on the login interface and execute the main interface after confirming that they are correct; Step 2: After the monitoring personnel clicks the button for monitoring the operating condition information on the main interface, the operating condition information transmission instruction is transmitted to the local operation device of the power plant; Step 3, after receiving the operating condition information transmission instruction, the local operation device of the power plant transmits the power plant's operating condition information such as the power plant's instant load, daily power generation, monthly power generation, annual power generation and instant coal consumption obtained after processing the power plant's on-site information in combination with the RTP mode to the remote monitoring device in real time; Step 4, after receiving the operating condition information of the power plant, the remote monitoring device performs display to express the change of the operating condition information; The step 3 specifically includes: Step 3-1, the current WIFI switch obtains the information message of the working condition information transmitted by the previous WIFI switch via the local operation device in RTP mode, performs decoding processing on the information message of the working condition information, and constructs the source working condition information; Step 3-2, checking the working condition information capacity of the source working condition information, and if the working condition information capacity of the source working condition information is higher than the information message capacity of the working condition information set in advance, dividing the source working condition information using the information message capacity of the working condition information set in advance as a standard, and constructing the information message after the divided working condition information; Step 3-3, serializing the information message after the divided working condition information to obtain a sequence code, and adding a message header for marking the type of the information message after the divided working condition information to the information message after the divided working condition information; Step 3-4, transmits the information message for listening to the temporary storage of the working condition information to the next WIFI switch, and the residual temporary storage capacity for receiving the working condition information fed back to the next WIFI switch can receive the information message after the overall segmentation of the working condition information, and adds the information message after the overall segmentation of the working condition information to the first-in-first-out buffer for transmission through the RTP mode to transmit it to the next WIFI switch. Here, the residual temporary storage capacity for receiving the working condition information is the residual capacity of the temporary storage capacity for receiving the working condition information minus the first-in-first-out buffer capacity for receiving.

4. The monitoring method of the monitoring system for power plant operating conditions according to claim 3, characterized in that: The source operating condition information can be segmented into information messages after segmenting the operating condition information, where X is the quotient of the capacity of the source operating condition information divided by the information message capacity of the operating condition information set in advance, and the quotient is processed by a Gaussian function to obtain an integer, and the capacity of the information message after the first X-1 segmented operating condition information is the information message capacity of the operating condition information set in advance, and the capacity of the information message after the last segmented operating condition information is not higher than the information message capacity of the operating condition information set in advance, and X is an integer greater than zero.

5. The monitoring method of the monitoring system for power plant operating conditions according to claim 3, characterized in that: A first-in first-out buffer for transmission can be added in a sequence from high to low according to the sequence code of the information message after the working condition information is divided; The first-in-first-out buffer for transmission has two kinds of information messages after the segmentation of the working condition information, one kind is the information message after the segmentation of the working condition information that has not been transmitted, and the other kind is the information message after the segmentation of the working condition information that has been transmitted but not received by the next WIFI switch after the segmentation of the working condition information that has been determined to obtain the corresponding sequence code. For the information message after the segmentation of the working condition information that has been transmitted but not received by the next WIFI switch after the segmentation of the working condition information that has been determined to obtain the corresponding sequence code, when the current WIFI switch does not receive the information message after the segmentation of the working condition information that has been transmitted by the next WIFI switch within a pre-set time interval, the information message after the segmentation of the working condition information with the corresponding sequence code is transmitted again to the next WIFI switch , or, for an information message after a target sequence code is segmented into working condition information, when the current WIFI switch still does not receive the corresponding determination information of the information message after the target sequence code is segmented into working condition information when the information of the information message after the determination of the corresponding sequence code is segmented into working condition information transmitted by the subsequent WIFI switch that is a preset number away, the information message after the target sequence code is segmented into working condition information is transmitted again to the subsequent WIFI switch, or, when the current WIFI switch receives the information message after the segmented working condition information of the corresponding sequence code transmitted by the subsequent WIFI switch but does not receive the information message, the information message after the corresponding sequence code is segmented into working condition information is transmitted again to the subsequent WIFI switch.

6. The monitoring method of the monitoring system for power plant operating conditions according to claim 5, characterized in that: After adding the information message after the overall segmentation of the working condition information to the first-in-first-out buffer for transmission, the information message after the segmentation of the working condition information is transmitted to the next WIFI switch in a manner consistent with the information transmission method of the RTP mode working condition information, that is, the information message after the segmentation of the working condition information is directly transmitted to the next WIFI switch.

7. The monitoring method of the monitoring system for power plant operating conditions according to claim 3, characterized in that: When there is an information message of the working condition information that has not been received by the subsequent WIFI switch, the information message after the working condition information is divided by the corresponding sequence code is transmitted to the subsequent WIFI switch again.

8. The monitoring method of the monitoring system for power plant operating conditions according to claim 3, characterized in that: A method for determining a WIFI switch in a WLAN having a plurality of WIFI switches includes: A-1, according to the mark of the destination WIFI switch, determine the WIFI switch with the largest attribute distance from the destination WIFI switch, and serve as the first WIFI switch of the destination WIFI switch; A-2, the WIFI switch with the second highest distance between the attribute quantity of the first A WIFI switches of the destination WIFI switch is used as the first A WIFI switches of the destination, where A is a positive integer.

9. The monitoring method of the monitoring system for power plant operating conditions according to claim 8, characterized in that: The attributes of the WIFI switch are determined at the following levels: S1. The traceability of the information message of the working condition information, that is, whether the WIFI switch can track and infer the information message of the working condition information, and whether the attribute information of the information message of the working condition information can be obtained. The quantity of the level can be one-fourth of the total quantity of the two pairs of levels, and one-twentieth can be reduced if one condition is met; S2, the controllability of the WIFI switch, determine the controllability of the WIFI switch as command activation control, proxy server control, pop-up attack times, hacker attack times or USB read and write control, the level of the amount can be one-fourth of the total two levels, the adjacent levels of the controllability are reduced by one-twentieth, the first control level corresponding to the amount is one-fourth, for example, the command activation control corresponding to the amount is one-fourth, the USB read and write control corresponding to the amount is one-twentieth; S3. The difficulty of parsing working condition information in the WIFI switch lies in the following two areas: One is whether the smoothness of WLAN information transmission meets the pre-set conditions; The second is whether the read / write performance of the WIFI switch meets the pre-set condition 2. The pre-set condition is such as whether the number of other WIFI switches connected to the WIFI switch is higher than the pre-set target quantity. The pre-set condition 2 is such as whether the read / write volume of the WIFI switch in the pre-set time interval is higher than the pre-set target quantity. The starting volume of the level is one quarter. Once the condition of the first area is met, it is reduced by one twentieth under the starting volume. The WIFI switch can be reversely valued based on historical information; when giving values, the WIFI switch can be reversely valued according to the frequency of occurrence of power plant operating information such as the power plant's instantaneous load, daily power generation, monthly power generation, annual power generation or instantaneous coal consumption in the WIFI switch; Here, the total amount of the attribute quantity of the WIFI switch is one, that is, the corresponding amount of the attribute quantity corresponding to each of the two pairs of levels is one fourth; The WIFI switch with the second highest distance between the attribute quantities of the first B WIFI switches of the destination is used as the first B WIFI switches of the destination; here, B is a positive integer greater than 1 and not greater than T, T is the number of WIFI switches through which the working condition information passes, and the distance between the attribute quantities is the result of taking the positive value of the quantity obtained by subtracting the attribute quantities of the two WIFI switches; The method of displaying the received power plant operating condition information to express the change of the operating condition information includes: The instantaneous load of the power plant in the operating information of the power plant is analyzed to obtain the effective instantaneous load and the current time point, and then the coordinate point formed by using the current time point as the horizontal coordinate value of the rectangular coordinate system one on the display interface of the remote monitoring device and using the effective instantaneous load as the vertical coordinate value of the rectangular coordinate system one is displayed on the rectangular coordinate system one; thus, the change status of the effective instantaneous load can be formed on the rectangular coordinate system one according to the sequence of time points; The instant coal consumption in the operating information of the power plant is analyzed to obtain the effective instant coal consumption and the current time point, and then the current time point is used as the horizontal coordinate value of the rectangular coordinate system 2 on the display interface of the remote monitoring device and the effective instant coal consumption is used as the vertical coordinate value of the rectangular coordinate system 2 to form a coordinate point to be displayed on the rectangular coordinate system 2; thus, the change status of the effective instant coal consumption can be formed on the rectangular coordinate system 2 according to the sequence of time points; The display interface is also provided with an arc-shaped scale plate 1, on which scale values ​​for measuring effective instantaneous load are provided, and a pointer 1 is provided below the arc-shaped scale plate 1. When the instantaneous load of the power plant in the operating condition information of the power plant is analyzed to obtain the effective instantaneous load, the pointer 1 is moved to the scale value position of the arc-shaped scale plate 1 that is consistent with the effective instantaneous load; thus, the change status of the effective instantaneous load can be intuitively obtained according to the movement status of the pointer 1; The display interface is also provided with an arc-shaped scale plate 2, on which scale values ​​for measuring effective daily power generation are provided, and below the arc-shaped scale plate 2 is provided a pointer 2, and when the daily power generation of the power plant in the operating condition information of the power plant is analyzed to obtain the effective daily power generation, the pointer 2 is moved to the scale value position of the arc-shaped scale plate 2 that is consistent with the effective daily power generation; thus, the change status of the effective daily power generation can be intuitively obtained according to the movement status of the pointer 2; The display interface is also provided with an arc-shaped scale plate 3, on which scale values ​​for measuring effective monthly power generation are provided, and a pointer 3 is provided below the arc-shaped scale plate 3. When the monthly power generation of the power plant in the operating condition information of the power plant is analyzed to obtain the effective monthly power generation, the pointer 3 is moved to the scale value position of the arc-shaped scale plate 3 that is consistent with the effective daily power generation; thus, the change status of the effective daily power generation can be intuitively obtained according to the movement status of the pointer 3; The display interface is also provided with an arc-shaped scale plate four having scale values ​​for measuring the effective annual power generation. A pointer four is provided below the arc-shaped scale plate four. When the annual power generation of the power plant in the operating condition information of the power plant is analyzed to obtain the effective annual power generation, the pointer four is moved to the scale value position of the arc-shaped scale plate four that is consistent with the effective annual power generation. In this way, the change status of the effective annual power generation can be intuitively obtained based on the movement status of the pointer four.

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