Heating pipe network temperature and pressure integrated wireless acquisition and regulation method and system
Patent Information
- Application Number
- CN202610757019.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-29
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2046-05-29
AI Technical Summary
[0003]现有供暖管网温压采集多按固定周期上传,温度与压力虽同步汇集但缺少面向同一管段事件过程的时间锚定,短时压力扰动容易被纳入常规记录,休眠基准随运行工况漂移时难以区分真实传递异常与普通波动,无线发送内容与泵阀执行依据之间关联偏弱,现场运维需依赖平台后处理判断,容易造成无效通信增加,数据噪声持续累积,热压传递状态识别滞后,末端调控依据不集中
[0014]本发明实施例提供的技术方案带来的有益效果至少包括:
Smart Images

Figure CN122308539B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of multi-physical quantity integrated measurement technology, and in particular to a wireless acquisition and control method and system for temperature and pressure in heating pipe networks. Background Technology
[0002] The field of multi-physical quantity integrated measurement technology mainly involves the detection, acquisition, conversion, transmission, and processing of various physical quantities such as temperature, pressure, flow rate, liquid level, humidity, and displacement. It is typically based on sensors, transmitters, data acquisition terminals, communication modules, and monitoring platforms, and is primarily used for equipment status sensing, process parameter recording, operational data management, and control command generation. It is widely applied in industries such as heating, water supply and drainage, industrial pipe networks, energy metering, environmental monitoring, and automation control. Among these, the traditional integrated wireless acquisition and control method for temperature and pressure in heating pipe networks refers to a method for the joint acquisition, wireless transmission, data aggregation, and control management of temperature and pressure parameters at locations such as pipe network nodes, heat exchange stations, valve wells, and user terminals, tailored to the operational scenarios of heating pipe networks.
[0003] The existing heating network temperature and pressure data are mostly uploaded at fixed intervals. Although temperature and pressure are collected synchronously, there is a lack of time anchoring for events in the same pipe section. Short-term pressure disturbances are easily included in routine records. When the dormant baseline drifts with the operating conditions, it is difficult to distinguish between real transmission anomalies and normal fluctuations. The correlation between wireless transmission content and pump and valve execution is weak. On-site operation and maintenance need to rely on platform post-processing for judgment, which can easily lead to an increase in invalid communication, continuous accumulation of data noise, lag in the identification of heat and pressure transmission status, and lack of centralized basis for terminal control. Summary of the Invention
[0004] To address the technical problems existing in the prior art, embodiments of the present invention provide a method and system for integrated wireless acquisition and control of temperature and pressure in heating pipe networks. The technical solution is as follows: On the one hand, a wireless data acquisition and control method for integrated temperature and pressure in heating pipe networks is provided, including the following steps: S1: Based on the water supply pipe section, collect pressure readings at pressure tapping locations, match temperature readings at temperature measurement locations in the same pipe section, determine the stability of pressure changes according to the sampling sequence, select stable segments as dormant references, and obtain the static baseline quantity. S2: Based on the static baseline quantity, call the hibernation record, collect the current pressure reading of the pressure sensor, compare it with the hibernation reference, determine the direction of pressure change, identify the pressure increase or decrease trigger type, and obtain the pressure transformer wake-up quantity; S3: Based on the pressure transformer wake-up amount, determine the pressure trigger time point, screen the starting point of the continuous change in downstream temperature, compare the time relationship between pressure change and temperature change, organize the temperature and pressure event records, and obtain the response time difference. S4: Based on the response time difference, call the stable operation record of the heat exchange station, compare the time difference between the current temperature and pressure event and the stable record, determine the category of heat and pressure transfer deviation in the pipe section, and obtain the heat and pressure deviation degree; S5: Based on the aforementioned thermal pressure deviation and pressure transformer wake-up amount, call the valve opening record and pump group frequency log, match the measurement point location with the execution object, adjust the wireless transmission content and pump valve commands, and obtain the execution correction amount.
[0005] On the other hand, the static baseline quantities include the steady-state pressure mean, sampling dispersion, and dormancy reference deviation; the pressure change wake-up quantities include pressure mutation, pressure change rate, and wake-up hold time; the response time difference quantities include pressure phase anchor point, temperature response point, and temperature-pressure response hysteresis; the thermo-pressure deviation includes heat transfer and transport reference time delay, current response time delay, and time delay deviation rate; and the execution correction quantities include valve opening increment, pump group frequency correction, and event frame field combination.
[0006] On the other hand, the steps for obtaining the static baseline amount are as follows: S101: Based on the water supply pipe section, obtain the pressure reading at the pressure tapping location, compare the temperature reading collected by the temperature sensor at the same sampling time, filter the complete temperature and pressure records at the time, determine the correspondence between the pressure change direction and the temperature change direction, adjust the start and end boundaries of the continuous sampling window, and obtain the temperature and pressure synchronization sequence. S102: Based on the temperature and pressure synchronization sequence, compare the continuity of the pressure change direction, analyze the start and end times of the temperature change, determine the segment where the pressure changes first and the temperature does not respond continuously, screen the segment where the pressure changes slowly and the temperature sequence is continuous, and obtain the fluctuation window classification label. S103: Based on the fluctuation window classification mark, filter the stable window pressure readings, compare the number of pressure jumps in the same window with the sampling error level, determine the temperature time sequence continuity, adjust the retained pressure reading as the dormant reference, and obtain the static baseline quantity.
[0007] On the other hand, the specific steps for obtaining the voltage transformer wake-up amount are as follows: S201: Based on the static baseline quantity, compare the pressure tapping location identifier and pressure sensor identifier in the hibernation record, filter the identifier matching records, analyze the continuous relationship of hibernation start and end times, determine whether there is a time break in the reference reading, adjust the arrangement order of the reference reading, and obtain the hibernation reference index; S202: Based on the dormancy reference index, compare the instantaneous pressure reading with the corresponding dormancy reference, analyze the continuity relationship of the deviation direction at adjacent sampling times, determine whether the deviation direction belongs to upward deviation or downward deviation, adjust the deviation direction classification record, and obtain the pressure deviation mark; S203: Based on the pressure bias mark, compare the relationship between the output polarity of the pressure comparison circuit and the deviation direction, analyze the duration of continuous deviation of the instantaneous pressure reading, determine the boost trigger state or the depressurization trigger state, and obtain the voltage transformer wake-up amount.
[0008] On the other hand, the specific steps for obtaining the response time difference are as follows: S301: Based on the pressure transformer wake-up amount, analyze the trigger time corresponding to the pressure change amount, compare the continuity direction of the pressure change rate in adjacent sampling times, filter the first sampling time of the continuous deviation section in the same direction, and obtain the pressure transformer start mark. S302: Obtain the temperature sampling record of the downstream measuring point, compare the sampling time with the corresponding event window of the pressure transformer start mark, analyze the adjacent change direction of the temperature reading, filter the start time of the continuous section of the direction, and obtain the temperature change start mark. S303: Based on the pressure change start mark, call the temperature change start mark, compare the sampling timing of the pressure start point and the temperature start point, determine whether the pressure-first state or the temperature-first state is in advance, adjust the temperature and pressure response records within the same event, and obtain the response time difference.
[0009] On the other hand, the specific steps for obtaining the hot-press deviation are as follows: S401: Based on the response time difference, call the stable flow record of the heat exchange station, verify the pressure change time and temperature change time according to the pipe section number, compare the chronological relationship of the two types of time under the same sampling clock, filter the continuous time records, and obtain the stable time delay reference set. S402: Based on the stationary time delay reference set, match the pressure phase anchor point and temperature response point in the current event record, compare the current response interval and the stationary flow interval, determine whether the current event is ahead, behind or synchronized with the reference, and obtain the event timing bias mark. S403: Based on the event timing bias marker, analyze the deviation of the pipe segment's thermal pressure transfer, compare the current response delay with the heat transfer and transport reference delay, determine the pipe segment's transfer state type, and obtain the thermal pressure deviation degree.
[0010] On the other hand, the step of obtaining the correction amount is specifically as follows: S501: Based on the hot pressure deviation, compare the event trigger time with the valve opening change time, analyze the opening direction corresponding to the pressure increase trigger state, determine the pressure decrease trigger state and the opening recovery direction, filter the opening records with consistent event affiliation, and obtain the opening trigger association index. S502: Based on the opening trigger association index, compare the valve actuator address with the pump group controller address, analyze the water supply pipe section corresponding to the measuring point location identifier, determine the pipe section ownership relationship of the measuring point location, valve actuator and pump group controller, and obtain the address command mapping relationship; S503: Based on the address instruction mapping relationship, analyze the correspondence between the pipe segment transmission state and the trigger state, compare the valve opening change direction and the pump group frequency change direction, adjust the valve opening increment and the pump group frequency correction amount, and combine the associated event frame fields to obtain the execution correction amount.
[0011] On the other hand, the pressure tapping location refers to the sampling point on the water supply pipe section where a pressure sensor or pressure tapping interface is installed, and the hibernation reference refers to the pressure reference data saved by the temperature and pressure acquisition terminal before entering hibernation.
[0012] On the other hand, the pressure reading refers to the current pressure reading output by the pressure sensor at a single sampling point, and the trigger time point refers to the sampling time point corresponding to when the pressure comparison circuit identifies the boost trigger state or the depressurization trigger state.
[0013] On the other hand, an integrated wireless acquisition and control system for temperature and pressure in heating pipe networks is provided. This system is applied to the integrated wireless acquisition and control method for temperature and pressure in heating pipe networks, including: The baseline generation module is based on the water supply pipe section. It collects pressure readings at pressure tapping locations, matches them with temperature readings at temperature measurement locations in the same pipe section, judges the stability of pressure changes according to the sampling time sequence, selects stable segments as dormant references, and obtains the static baseline quantity. Based on the static baseline quantity, the pressure transformer identification module calls the sleep record, collects the current pressure reading of the pressure sensor, compares it with the sleep reference, determines the direction of pressure change, identifies the pressure increase or decrease trigger type, and obtains the pressure transformer wake-up quantity. The time difference determination module determines the pressure trigger time point based on the pressure transformer wake-up quantity, filters the starting point of continuous downstream temperature change, compares the time relationship between pressure change and temperature change, organizes temperature and pressure event records, and obtains the response time difference quantity. Based on the response time difference, the deviation determination module calls the stable operation record of the heat exchange station, compares the time difference between the current temperature and pressure event and the stable record, determines the category of heat and pressure transfer deviation in the pipe section, and obtains the degree of heat and pressure deviation. Based on the thermo-pressure deviation and pressure transformer wake-up amount, the correction output module calls the valve opening record and pump group frequency log, matches the measurement point position with the execution object, adjusts the wireless transmission content and pump valve commands, and obtains the execution correction amount.
[0014] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: By establishing a progressive correlation around the pressure benchmark, pressure direction trigger, temperature response start point, and stable flow reference of the water supply pipeline section, pressure events are used as the basis for sampling initiation. The pressure change start point and temperature change start point are grouped into the same event time relationship. Then, the measurement point location and pump valve execution object are linked according to the degree of thermal pressure deviation. This avoids subsequent interpretation based solely on discrete temperature and pressure records, reduces irrelevant sampling communication, compresses data noise, distinguishes between pressure disturbances and transmission blockages, and forms wireless event content and control basis for the thermal pressure status of the pipeline section. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a flowchart of the main steps of the present invention; Figure 2 This is a flowchart of steps S1 of the present invention; Figure 3 This is a flowchart of steps S2 of the present invention; Figure 4 This is a flowchart of steps S3 of the present invention; Figure 5 This is a flowchart of step S4 of the present invention; Figure 6 This is a flowchart of steps S5 of the present invention; Figure 7 This is a system block diagram of the present invention. Detailed Implementation
[0017] The technical solution of the present invention will now be described with reference to the accompanying drawings.
[0018] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.
[0019] This invention provides an integrated wireless acquisition and control method for temperature and pressure in heating pipe networks, such as... Figure 1 As shown, it includes the following steps: S1: Based on the water supply pipe section, obtain the pressure reading at the pressure tapping location, compare the temperature reading at the temperature measurement location of the same pipe section with the sampling time sequence, determine the pressure fluctuation within the continuous sampling window, select the pressure reading corresponding to the stable window as the dormant reference, and obtain the static baseline quantity. S2: Based on the static baseline, call the hibernation record to obtain the instantaneous pressure reading of the pressure sensor at the pressure tapping position of the water supply pipe section, compare it with the hibernation reference, determine the direction of the reading deviation in the pressure comparison circuit, identify the pressure boosting trigger state or the pressure depressurization trigger state, and obtain the pressure transformer wake-up quantity; S3: Based on the pressure transformer wake-up quantity, according to the trigger time, screen the starting point of continuous temperature change at downstream measuring points, compare the timing of the pressure change starting point and the temperature change starting point, adjust the temperature and pressure response records within the same event, and obtain the response time difference. S4: Based on the response time difference, obtain the pressure change time and temperature change time during the stable flow period of the heat exchange station, compare the time difference between the current event record and the stable flow record, determine the attribution of the pipe section heat and pressure transfer deviation, identify the pipe section transfer status, and obtain the heat and pressure deviation degree. S5: Based on the thermal pressure deviation and pressure transformer wake-up amount, call the valve actuator opening record in the valve well, compare the correspondence between the measuring point position identifier and the execution address according to the pump group controller frequency log in the heat exchange station, write the event frame into the wireless communication terminal, and adjust the pump valve control command to obtain the execution correction amount.
[0020] Static baseline quantities include steady-state pressure mean, sampling dispersion, and dormant baseline deviation; pressure change wake-up quantities include pressure abrupt change, pressure change rate, and wake-up hold time; response time difference quantities include pressure phase anchor point, temperature response point, and temperature-pressure response hysteresis; thermo-pressure deviation quantities include heat transfer and transport baseline delay, current response delay, and delay deviation rate; and execution correction quantities include valve opening increment, pump group frequency correction, and event frame field combination.
[0021] In S1, the pressure tapping location refers to the sampling point on the water supply pipe section where a pressure sensor or pressure tapping interface is installed; the continuous sampling window refers to a set of continuous pressure readings formed by the temperature and pressure acquisition main control unit according to the sampling sequence; the pressure fluctuation classification refers to the pressure change category determined based on the direction and amplitude of the pressure reading change; the stable window refers to the sampling segment in the continuous pressure reading where the change amplitude is within the set allowable range; and the sleep reference refers to the pressure reference data saved before the temperature and pressure acquisition terminal enters sleep mode. In S2, the instantaneous pressure reading refers to the current pressure reading output by the pressure sensor at a single sampling point; the reading deviation direction refers to the upward or downward direction of the instantaneous pressure reading relative to the sleep reference; the boost trigger state refers to the trigger category identified by the pressure comparison circuit after the instantaneous pressure reading rises relative to the sleep reference; the depressurization trigger state refers to the trigger category identified by the pressure comparison circuit after the instantaneous pressure reading falls relative to the sleep reference. In S3, the trigger time refers to the sampling time point when the pressure comparison circuit identifies the pressure boosting or depressurizing trigger state; the downstream measuring point refers to the temperature sampling point located after the pressure sampling point along the water flow direction of the heating pipe network; the time sequence refers to the relationship between the pressure change start point and the temperature change start point on the sampling time axis; the same event refers to the temperature and pressure change process consisting of a single pressure trigger and its corresponding temperature change; the temperature and pressure response record refers to the record formed by the pressure change start point, the temperature change start point, and their time relationship in the same event; In S4, the stable flow period of the heat exchange station refers to the operating phase in which the operating parameters of the heat exchange station's pipeline network are within a stable range of change; the current event record refers to the corresponding record of pressure and temperature changes formed after this pressure trigger; the stable flow record refers to the corresponding record of pressure and temperature changes formed during the stable flow period of the heat exchange station; the deviation of heat-pressure transmission refers to the deviation category formed by the current temperature-pressure response relationship relative to the stable flow record; and the pipe section transmission status refers to the transmission status between pressure changes and temperature responses in the heating pipe section. In S5, the opening degree record refers to the record corresponding to the current valve opening degree of the valve actuator; the pump group controller refers to the control device in the heat exchange station used to control the operating frequency or start / stop status of the circulating pump; the measuring point location identifier refers to the code or name used to distinguish different sampling parts of the heating pipe network; the execution address refers to the object address of the valve actuator or pump group controller in the control system; the event frame refers to the data unit that encapsulates temperature and pressure event data when wirelessly transmitting; the wireless communication terminal refers to the wireless communication device that sends temperature and pressure event data to the receiving end on the heat exchange station side, such as NB-IoT communication module, LoRa wireless data transmission terminal or LoRaWAN gateway, etc.
[0022] like Figure 2 As shown, the specific steps for obtaining the static baseline are as follows: S101: Based on the water supply pipe section, obtain the pressure reading at the pressure tapping location, compare the temperature reading collected by the temperature sensor at the same sampling time, filter the complete temperature and pressure records at the time, determine the correspondence between the pressure change direction and the temperature change direction, adjust the start and end boundaries of the continuous sampling window, and obtain the temperature and pressure synchronization sequence. Taking the DN200 water supply pipe section between the main outlet pipe and valve well No. 1 as the object, first determine the pipe section number, pressure tap location, temperature measurement point location, sampling cycle, and timestamp rules. The pressure tap is set 38m after leaving the station, and the temperature measurement point is set 42m downstream of the same pipe section. The sampling cycle is 30s. At each sampling time, the pressure and temperature are read separately, and the timestamps of the two readings are checked. If the time difference is no more than 2s, it is included in the record of the same time. If the time difference exceeds 2s or either reading is missing, it is marked as an incomplete record. For example, if the pressure is read as 0.632MPa and the temperature as 64.8℃ at 08:00:00, and the two timestamps are consistent, this group of records is retained; if only the pressure is read as 0.634MPa at 08:01:00 but there is no temperature reading, this group of records is discarded. Then, the directions of pressure and temperature changes at adjacent time points are compared. Pressure changes exceeding 0.008 MPa are recorded as either rising or falling, while those within this range are recorded as level. Temperature changes exceeding 0.1 °C are also recorded as either rising or falling, while those within this range are recorded as level. If one sampling point is missing within a consecutive window, and the direction of change has not reversed, the window boundary is extended forward by one sampling period. If two sampling points are missing, the window is redefined. Finally, complete records of pressure, temperature, and direction are preserved in chronological order to form a synchronized temperature and pressure sequence.
[0023] S102: Based on the temperature and pressure synchronization sequence, compare the continuity of pressure change direction, analyze the start and end times of temperature change, determine the segment where pressure changes first and temperature does not respond continuously, screen the segment where pressure changes are gradual and temperature time sequence is continuous, and obtain the fluctuation window classification label. The system acquires the pressure direction, temperature direction, and changes in adjacent readings. With a sampling period of 30 seconds, three consecutive sampling points with the same direction are used as the criterion for determining directional continuity. For example, the pressures at 08:02:00, 08:02:30, and 08:03:00 are 0.647 MPa, 0.661 MPa, and 0.674 MPa respectively. Since adjacent changes all exceed 0.008 MPa, this is determined as a continuation of pressure increase. Subsequently, the system identifies the starting point of continuous temperature change. If the temperature changes by more than 0.1℃ from the previous moment and continues to change in the same direction at the next moment, this moment is recorded as the starting point of the temperature response. If the temperature change is only 0.1℃, it is treated as a horizontal change. For example, when 64.9℃, 65.0℃, 65.3℃, and 65.5℃ appear sequentially, the change from 65.0℃ to 65.3℃ exceeds 0.1℃, and the temperature continues to rise at the next moment; therefore, the starting point of the temperature response is set at the moment corresponding to 65.0℃. Next, the pressure continuation start point and the temperature response start point are compared. If the pressure start point is more than 60 seconds earlier than the temperature start point, the segment is recorded as a segment where the pressure changes first but the temperature response is not continuous. Segments with relatively stable pressure are judged based on the difference between the maximum and minimum pressures within the window. If the difference does not exceed 0.012 MPa and the temperature timestamps are continuous, it is recorded as a stable candidate segment. Finally, the start and end times, pressure direction, temperature continuity status, and segment category corresponding to each window are written into a labeling table to obtain the fluctuation window classification label.
[0024] S103: Based on the fluctuation window classification mark, filter the stable window pressure readings, compare the number of pressure jumps in the same window with the sampling error level, determine the temperature time series continuity, adjust the retained pressure reading as the dormant reference, and obtain the static baseline quantity; Taking the stable candidate segment in the fluctuation window classification as the object, first obtain all pressure readings and temperature timestamps within the window; pressure jumps are determined by whether the difference between two adjacent pressure readings exceeds 0.016 MPa, which is set by the superposition of two consecutive 0.008 MPa allowable error of the pressure sensor. If an adjacent difference exceeding 0.016 MPa appears within the window, it is recorded as one jump; if the number of jumps exceeds 0, the window is not used as a sleep reference. The sampling error level is divided according to the field calibration deviation: 0 to 0.008 MPa is level one, exceeding 0.008 MPa but not exceeding 0.016 MPa is level two, and exceeding 0.016 MPa is level three; only level one and level two windows are retained subsequently. For example, from 08:05:00 to 08:09:30, there are 10 pressure readings, ranging from 0.631 MPa to 0.635 MPa, with a maximum adjacent difference of 0.003 MPa, and the number of jumps is 0, the error level is level one. Next, the temperature timestamps were checked. If adjacent intervals were all 30 seconds and there were no missing timestamps, the sequence was considered continuous; if a 60-second interval appeared, the window was discarded. The total pressure readings of the above 10 pressures were 6.329 MPa, which was averaged to 0.6329 MPa. The difference between the maximum and minimum pressures was 0.004 MPa; the reference pressure for the previous sleep cycle was 0.6315 MPa, and the current average pressure was 0.0014 MPa higher. Finally, the steady-state pressure mean, sampling dispersion, and sleep baseline deviation were written into the corresponding pressure point records to obtain the static baseline.
[0025] like Figure 3 As shown, the specific steps for obtaining the voltage transformer wake-up amount are as follows: S201: Based on the static baseline, compare the pressure tapping location identifier with the pressure sensor identifier in the hibernation record, filter the identifier matching records, analyze the continuous relationship of the hibernation start and end times, determine whether there is a time gap in the reference reading, adjust the arrangement order of the reference reading, and obtain the hibernation reference index. Obtain the pipe section number G1, pressure tap location P1, pressure sensor number PS-01, sleep start time, sleep end time, reference pressure 0.6329 MPa, and sampling dispersion 0.004 MPa. Then, retrieve the pressure tap location field and sensor field from the sleep record table and check the character consistency of each record against P1 and PS-01. If the pressure tap location in the record is P1 and the sensor number is PS-01, the record is added to the matching set; if the pressure tap location is P2 or the sensor number is PS-03, even if the pressure value is close to 0.6329 MPa, it is not added to the matching set. The time field in the matching set is then read and arranged from earliest to latest according to the collection time. The sampling period remains 30 seconds, and the time tolerance is set to 2 seconds based on the clock drift of the on-site terminal. Therefore, the time interval between adjacent sleep records is between 28 and 32 seconds and is recorded as continuous. If the record after 08:12:00 is 08:12:30, then the continuous record is marked as 1. If the record after 08:12:00 is 08:13:30, then there is a 60-second interval, and the record is considered to have been broken once. Records with disordered reception order are rearranged. For example, if the terminal receives 08:14:00 first, then 08:13:30, and then 08:14:30 again, the records are adjusted according to the collection time to 08:13:30, 08:14:00, and 08:14:30. For records uploaded repeatedly at the same time, the one with the later reception time and the same checksum is selected; if the checksums are inconsistent, that time is not written into the index. Finally, the matched pipe segments, pressure taps, sensor numbers, continuous time periods, fracture locations, and reference pressures are arranged into queryable entries to obtain the dormant baseline index.
[0026] S202: Based on the dormant reference index, compare the instantaneous pressure reading with the corresponding dormant reference, analyze the continuity of the deviation direction at adjacent sampling times, determine whether the deviation direction is an upward deviation or a downward deviation, adjust the deviation direction classification record, and obtain the pressure bias mark; The corresponding sleep reference is 0.6329 MPa, sampling dispersion is 0.004 MPa, and pressure sensor allowable error is 0.008 MPa. The deviation judgment threshold is set to 0.012 MPa by superimposing the two values; therefore, the upward judgment threshold is 0.6449 MPa, and the downward judgment threshold is 0.6209 MPa. Before waking up, after obtaining the instantaneous pressure, the reading is directly subtracted from the corresponding sleep reference. A reading higher than 0.6449 MPa is recorded as an upward candidate, a reading lower than 0.6209 MPa is recorded as a downward candidate, and a reading between 0.6209 MPa and 0.6449 MPa is recorded as neutral. For example, the instantaneous pressure at 08:20:00 is 0.646 MPa, higher than the upward judgment threshold of 0.0011 MPa, and is initially recorded as an upward candidate; the instantaneous pressure at 08:20:30 is 0.651 MPa, still higher than the upward judgment threshold. Since the two adjacent sampling times are in the same direction, it is recorded as an upward continuation. If the reading drops to 0.640 MPa at 08:21:00, this moment is recorded as neutral, and the upward continuation is terminated. Downward deviations are handled according to the same rules. For example, if the reading is 0.619 MPa at 08:25:00 and 0.616 MPa at 08:25:30, both are below 0.6209 MPa, and are recorded as downward continuation. For windows where upward and downward candidates alternate, if two adjacent windows have opposite directions and the time interval does not exceed 30 seconds, the window is marked as oscillating and is not included in the unidirectional deviation record. Finally, the pressure tapping point, instantaneous pressure, reference pressure, deviation difference, number of consecutive occurrences, and direction category are written into the classification record to obtain the pressure bias mark.
[0027] S203: Based on the pressure bias mark, compare the correspondence between the output polarity of the pressure comparison circuit and the deviation direction, analyze the continuous deviation duration of the instantaneous pressure reading, determine the boost trigger state or the buck trigger state, and obtain the voltage transformer wake-up quantity. Taking the continuous direction records in the pressure bias marking as the object, first read the comparator circuit output polarity, instantaneous pressure reading, deviation direction, deviation start point, deviation end point, and sampling period. The positive polarity of the comparator circuit corresponds to the state where the pressure reading is higher than the sleep reference, the negative polarity corresponds to the state where the pressure reading is lower than the sleep reference, and zero polarity corresponds to the neutral range. When the output voltage of the field circuit is higher than 2.8V, it is recorded as positive polarity; when it is lower than 0.7V, it is recorded as negative polarity; and between 0.7V and 2.8V, it is recorded as zero polarity. This range is set with reference to the stable output range of the 3.3V power supply comparator circuit. For example, at 08:20:00, the pressure bias is an upward candidate, and the circuit outputs 3.1V, with the polarity consistent with the upward direction; at 08:20:30, the pressure bias is still an upward candidate, and the circuit outputs 3.0V. The continuous deviation time is accumulated over two sampling intervals for 60 seconds. If the continuous deviation duration reaches 60 seconds, and the polarity and deviation direction are consistent at least twice, a trigger state is written; if the pressure rises while the circuit output is negative, a polarity conflict flag is written for that sampling point. Boost triggering is determined by the simultaneous fulfillment of three conditions: upward continuation, continuous positive polarity, and pressure reading above 0.6449 MPa; buck triggering is determined by the simultaneous fulfillment of three conditions: downward continuation, continuous negative polarity, and pressure reading below 0.6209 MPa. For example, if 0.646 MPa and 0.651 MPa appear consecutively, the circuit outputs 3.1V and 3.0V, the wake-up hold time is recorded as 60 seconds, the pressure surge is the difference between the current reading and 0.6329 MPa (0.0181 MPa), and the pressure change rate is recorded as a 0.005 MPa change within a 30-second interval. Finally, the pressure surge, pressure change rate, wake-up hold time, and trigger direction are written into the event log to obtain the pressure transformer wake-up value.
[0028] like Figure 4 As shown, the specific steps for obtaining the response time difference are as follows: S301: Based on the pressure transformer wake-up amount, analyze the trigger time corresponding to the pressure change amount, compare the continuity direction of the pressure change rate in adjacent sampling times, screen the first sampling time of the continuous deviation section in the same direction, and obtain the pressure transformer start mark. The P1 pressure tapping point event record corresponding to the pressure transformer wake-up quantity is used as the object to obtain the trigger direction, pressure mutation amount, pressure change rate, wake-up hold time, instantaneous pressure sequence, and sampling time. The on-site sampling period is 30s, the sleep reference is 0.6329MPa, the upper limit is 0.6449MPa, and the lower limit is 0.6209MPa. Three sets of pressure readings are read at 08:20:00, 08:20:30, and 08:21:00, with values of 0.646MPa, 0.651MPa, and 0.656MPa respectively. All three sets of readings are higher than 0.6449MPa, and are marked as upward deviations. The directions of adjacent pressure changes are then checked: from 0.646MPa to 0.651MPa, the pressure increases by 0.005MPa, and from 0.651MPa to 0.656MPa, the pressure increases by 0.005MPa, both in an upward direction. The pressure change rate is calculated based on the difference between adjacent readings within 30 seconds. 0.005 MPa corresponds to approximately 0.00017 MPa per second. This value is greater than the field-set lower limit for directional continuation of 0.00010 MPa per second, and the directional continuation mark is valid. This lower limit is set with reference to the sensor's allowable error of 0.008 MPa and a 30-second sampling interval. 0.008 MPa distributed over 30 seconds is approximately 0.00027 MPa per second, and about one-third of this is taken as the boundary for identifying the change direction. If a reading is higher than the upper limit but the next reading falls back to 0.640 MPa, this position is not considered the starting point of a continuous segment. Finally, the earliest valid sampling time (08:20:00) within the continuous deviation segment in the same direction is selected, and the pressure tapping point, direction, pressure value, and trigger time are written in to obtain the pressure change start mark.
[0029] S302: Acquire downstream measuring point temperature sampling records, compare the sampling time with the corresponding event window of the pressure transformer start mark, analyze the adjacent change direction of temperature readings, filter the start time of continuous directional segments, and obtain the temperature change start mark; Acquire the temperature measurement record of point T1, which belongs to the same water supply pipe section as point P1 (G1 pressure tap), and use 08:20:00 from the pressure transformer start mark as the event alignment time. The event window starts at 08:19:30 and ends at 08:30:00, with a sampling period of 30 seconds. The window settings are determined by considering the layout distance of approximately 4 meters from P1 to T1 in this pipe section, the on-site flow velocity of approximately 0.6 m / s in the heating network, and the temperature sensor response delay of approximately 20 seconds. The flow time over 4 meters is approximately 7 seconds. The sensor response delay and sampling interval are then added, shifting the window start point forward by 30 seconds and the window end point backward by 10 minutes. Temperatures of T1 at 08:20:00, 08:20:30, 08:21:00, 08:21:30, 08:22:00, and 08:22:30 were recorded as 64.8℃, 64.8℃, 64.9℃, 65.1℃, 65.3℃, and 65.4℃, respectively. Adjacent temperature changes of no more than 0.1℃ were recorded as horizontal; changes exceeding 0.1℃ were recorded as either upward or downward. The change from 64.8℃ to 64.9℃ was 0.1℃, falling into the horizontal boundary; the change from 64.9℃ to 65.1℃ was 0.2℃, recorded as upward; the subsequent change from 65.1℃ to 65.3℃ was also 0.2℃, continuing to be recorded as upward. Therefore, the temperature reading at 08:21:00 became the previous anchor point for the continuous temperature increase segment, and 08:21:30 became the confirmation point for continuous temperature change. If a single 0.2℃ change occurs and the temperature returns to a horizontal direction immediately afterward, the starting point is not recorded. Finally, the T1 measurement point, temperature direction, initial sampling time, and continuous confirmation time are recorded to obtain the temperature change start marker.
[0030] S303: Based on the pressure change start mark, call the temperature change start mark, compare the sampling time sequence of the pressure start point and the temperature start point, determine whether the pressure-first state or the temperature-first state is ahead, adjust the temperature and pressure response records within the same event, and obtain the response time difference. Acquire the following information: P1 pressure start time (08:20:00), T1 temperature start time (08:21:30), pressure direction (upward), temperature direction (upward), event number E202, pipe segment number G1, and sampling period (30s). Then verify that the event windows of the two records overlap. If no new opposite pressure trigger occurs between the pressure and temperature start times, and the temperature measurement point numbers belong to the same pipe segment, they are classified as the same event. When comparing the sampling timing of the two start times, first record 08:20:00 as the pressure phase anchor point and 08:21:30 as the temperature response point. The difference between the two is 90s, recorded over three sampling periods. The time difference judgment interval is set according to the sampling period: 0 to 30s is recorded as the synchronization interval; exceeding 30s but not exceeding 180s is recorded as the pressure-first or temperature-first interval; exceeding 180s is recorded as the interval to be verified. In this example, 90s falls within the pressure-first interval. If the temperature start point is earlier than the pressure start point, and the lead time exceeds 30 seconds, it is recorded as temperature-priority; if the difference is no more than 30 seconds, it is recorded as synchronous. Then, the directional consistency within the same event is checked. If both pressure and temperature are rising, a co-directional record is written; if pressure is rising but temperature is falling, a directional conflict record is written, and the event is removed from the regular time difference queue. Finally, the pressure phase anchor point (08:20:00), temperature response point (08:21:30), temperature and pressure response lag (90 seconds), priority category, and event number are written into the response record to obtain the response time difference.
[0031] like Figure 5 As shown, the specific steps for obtaining the hot-press deviation are as follows: S401: Based on the response time difference, call the stable flow record of the heat exchange station, verify the pressure change time and temperature change time according to the pipe section number, compare the chronological relationship of the two types of time under the same sampling clock, filter the continuous time records, and obtain the stable time delay reference set. Obtain event number E202, pipe segment number G1, pressure phase anchor point 08:20:00, temperature response point 08:21:30, and temperature and pressure response lag of 90s. Then, retrieve the historical segment with pipe segment number G1 from the stable flow record of the heat exchange station. Select stable segments where the pump frequency remains between 38.0Hz and 38.3Hz for 10 consecutive minutes, the valve opening remains between 62% and 63%, and the water supply pressure fluctuation does not exceed 0.012MPa. Verify the pressure change time and temperature change time within each historical segment. If the pressure measuring point is P1, the temperature measuring point is T1, and the pipe segment number is G1, then add them to the candidate record for the same pipe segment; if the temperature measuring point comes from pipe segment G2, then remove it. The sampling clock has an allowable deviation of 2 seconds. Pressure time 08:05:00 and temperature time 08:06:00 are within the same sampling clock sequence, differing by two 30-second sampling cycles; this is recorded as the valid sequence. If the pressure time 08:05:00 corresponds to the temperature time 08:06:17, and the deviation from the sampling clock exceeds 2 seconds, that record is not included in the reference. Next, the candidate records are checked for continuity. Records with adjacent pressure change times at intervals of 30 or 60 seconds are retained; those with intervals exceeding 90 seconds are truncated. For example, 5 records are retained, corresponding to intervals of 60s, 60s, 90s, 60s, and 60s, totaling 330 seconds, with an average of 66 seconds. Finally, the pressure time, temperature time, single interval, average interval, and pipe segment number for each record are written into a reference table to obtain the stationary time delay reference set.
[0032] S402: Based on the stationary time delay reference set, match the pressure phase anchor point and temperature response point in the current event record, compare the current response interval and the stationary flow interval, determine whether the current event is ahead, behind or synchronized with the reference, and obtain the event timing bias mark. The reference average interval for pipe segment G1 is obtained as 66s, minimum interval as 60s, maximum interval as 90s, and sampling period as 30s. Then, the pressure phase anchor point (08:20:00) and temperature response point (08:21:30) in the current event E202 are read; the difference between the two is 90s. The current response interval is directly subtracted from the reference average interval; 90s minus 66s equals 24s. The criteria for determining advance, lag, and synchronization are set to 30s based on one sampling period. A difference between -30s and +30s is considered synchronous, a difference greater than 30s is considered lag, and a difference less than -30s is considered advance. The current difference of 24s falls within the synchronization range; therefore, event E202 is classified as a synchronization bias record. If another event's pressure anchor point is 09:10:00 and its temperature response point is 09:12:30, with a current interval of 150s, subtracting 66s from 150s gives 84s, which is greater than 30s, then it is recorded as lagging. If the temperature response point is 09:10:30 and the current interval is 30s, subtracting 66s from 30s gives -36s, which is less than -30s, then it is recorded as advancing. For the case of multiple temperature response points within the same event, the temperature point that corresponds to the pressure direction and has the earliest two consecutive changes in the same direction is selected. For the case of multiple pressure anchor points appearing consecutively, the first anchor point whose trigger hold time reaches 60s is selected. Finally, the current interval, reference interval, difference value, and advance / lag category are written into the event record to obtain the event timing bias label.
[0033] S403: Based on the event timing bias mark, analyze the deviation of pipe segment heat and pressure transfer, compare the current response delay with the heat transfer and transport reference delay, determine the pipe segment transfer state type, and obtain the heat and pressure deviation degree. The synchronization bias category of pipe segment G1, the current response interval (90s), the reference average interval (66s), and the reference range (60s to 90s) are obtained. Then, the heat transfer and transport baseline delay is retrieved, which is the average of 5 valid records from the stable reference set (66s). When comparing the current response delay with the baseline delay, the difference of 24s is first obtained. Then, 24s is divided by 66s to obtain a delay deviation rate of approximately 36.4%. The pipe segment's transmission status is divided according to the deviation rate range: 0 to 10% is considered consistent with the baseline; more than 10% but not exceeding 30% is considered a slight deviation; more than 30% but not exceeding 60% is considered a moderate deviation; and more than 60% is considered a severe deviation. This range is set with reference to a 30s sampling period and the 60s to 90s fluctuation range of the stable records of pipe segment G1. A single sampling period corresponds to approximately 45.5% of the reference 66s, therefore, 30% to 60% covers the deviation around one sampling period. The current 36.4% falls within the moderate deviation range, and the current interval of 90s is greater than the baseline of 66s, classifying it as a delayed response transfer state. If the current interval is 54s, subtracting 66s from 54s yields -12s, with a deviation rate of approximately 18.2%, classifying it as an advanced slight deviation. If the current interval is 68s, the difference is 2s, with a deviation rate of approximately 3.0%, classifying it as consistent with the baseline. Finally, the baseline heat transfer delay of 66s, the current response delay of 90s, the delay deviation rate of 36.4%, and the transfer state type are written into the pipe segment record to obtain the thermo-pressure deviation.
[0034] like Figure 6 As shown, the specific steps for obtaining the correction amount are as follows: S501: Based on the thermal pressure deviation, compare the event trigger time with the valve opening change time, analyze the opening direction corresponding to the pressure increase trigger state, determine the pressure decrease trigger state and the opening recovery direction, filter the opening records with consistent event affiliation, and obtain the opening trigger association index. Obtain event number E202, trigger time 08:20:00, trigger direction is pressure increase, current response delay is 90s, reference delay is 66s, and pipe segment status is moderate lag; then retrieve the opening record of V-G1 actuator in valve well of pipe segment G1, and read the opening change between 08:18:00 and 08:24:00. The associated time window is set to 30s before triggering and 120s after triggering, based on a sampling period of 30s and a valve actuator feedback delay of 90s. Records within the window are added to the candidate set; for example, valve opening is 62% at 08:19:30, 64% at 08:20:30, and 66% at 08:21:00, all within the associated time window. When comparing the trigger direction with the opening direction, pressure boosting trigger corresponds to the opening increase direction, and pressure reduction trigger corresponds to the opening decrease direction. Opening changes less than 1% are considered invalid changes, 1% to 3% are considered minor changes, exceeding 3% but not exceeding 8% are considered normal changes, and exceeding 8% are considered abnormal changes. The opening change from 62% to 66%, an increase of 4%, is classified as a normal change, and its direction is consistent with the pressure boosting trigger. If a record exists in the same window where the V-G2 opening changes from 55% to 58%, this record is removed because the valve number does not belong to the G1 pipe section. If the V-G1 opening decreases from 62% to 60%, with the direction opposite to the pressure boosting trigger, this record is written into the inconsistency item. Finally, E202, V-G1, 08:20:30, opening increase of 4%, consistent pressure boosting direction, and moderate lag status are written into the association table to obtain the opening trigger association index.
[0035] S502: Based on the opening trigger association index, compare the valve actuator address with the pump group controller address, analyze the water supply pipe section corresponding to the measuring point location identifier, determine the pipe section belonging relationship of the measuring point location, valve actuator and pump group controller, and obtain the address command mapping relationship; Obtain the V-G1 actuator address AV-011, P1 pressure tap address AP-001, T1 temperature measuring point address AT-001, pump group controller address AB-001, and pipe section number G1; then call the station address table and check the pipe section field, equipment type field, and communication terminal field for each address item by item. If AV-011 corresponds to the G1 valve well, AB-001 corresponds to the G1 water supply branch pump group of the heat exchange station, and AP-001 and AT-001 correspond to the G1 water supply pipe section, then the four items are consistent; if a pump group address corresponds to the G2 return water branch, then that pump group is not written into the mapping relationship. The location identifier for each measuring point is read in three segments: station number, pipe segment number, and measuring point sequence. For example, P1 is identified as HS01-G1-P01, T1 as HS01-G1-T01, valve V-G1 as HS01-G1-V01, and pump group B-G1 as HS01-G1-B01. If the station number and pipe segment number in the first three segments are consistent, they are recorded as belonging to the same segment. If the stations are the same but the pipe segments are different, they are marked as adjacent segments; if the stations are different, they are marked as external segments. The communication address verification also reads the wireless terminal number WT-07. If P1, T1, and V-G1 are all uploaded via WT-07, while pump group B-G1 is recorded by the station control cabinet SC-01, then the association continues according to the G1 pipe segment field. Finally, the addresses of the measuring points, valves, pump groups, wireless terminals, and control cabinets are arranged into a path that can send commands, resulting in an address-command mapping relationship.
[0036] S503: Based on the address instruction mapping relationship, analyze the correspondence between the pipe segment transmission status and the trigger status, compare the valve opening change direction and the pump group frequency change direction, adjust the valve opening increment and the pump group frequency correction amount, and combine the associated event frame fields to obtain the execution correction amount. Using the G1 control path corresponding to the address command mapping relationship as the object, the trigger state of event E202 is obtained as pressure increase, the pipeline transmission state is moderate lag, the valve opening increases from 62% to 66%, and the pump frequency increases from 38.1Hz to 39.0Hz. Then, the valve direction and pump direction are compared. When both valve opening and pump frequency increase, it is recorded as a same-direction increment; when both valve opening and pump frequency decrease, it is recorded as a same-direction recovery; when one increases and the other decreases, it is recorded as a reverse record. The current event is a pressure increase trigger with moderate lag. The valve opening has increased by 4%, and the pump frequency has increased by 0.9Hz. The opening correction range is divided according to the transmission state: 0% to 1% corresponds to baseline consistency, 1% to 2% to slight deviation, 2% to 4% to moderate deviation, and 4% to 6% to severe deviation. The current deviation is moderate, and the existing opening increment has reached 4%, with the valve increment remaining at 4%. The pump frequency correction range is set according to the deviation level: slight deviation is 0.2Hz to 0.5Hz, moderate deviation is 0.5Hz to 1.0Hz, and severe deviation is 1.0Hz to 1.5Hz. The current frequency correction is 0.9Hz, which is within the moderate deviation range, and remains at 39.0Hz. Subsequently, the event frame fields are combined, and the event number E202, pipe segment G1, trigger direction pressure increase, thermal pressure deviation rate 36.4%, valve address AV-011, pump address AB-001, valve opening increment 4%, pump frequency correction 0.9Hz, and timestamp 08:21:00 are written to obtain the executed correction amount.
[0037] like Figure 7 As shown, the integrated wireless data acquisition and control system for heating network temperature and pressure includes: The baseline generation module is based on the water supply pipe section. It collects pressure readings at pressure tapping locations, matches them with temperature readings at temperature measurement locations in the same pipe section, judges the stability of pressure changes according to the sampling time sequence, selects stable segments as dormant references, and obtains the static baseline quantity. The pressure transformer identification module uses static baseline data to access sleep records, collects the current pressure reading of the pressure sensor, compares it with the sleep reference, determines the direction of pressure change, identifies the type of pressure increase or decrease trigger, and obtains the pressure transformer wake-up value. The time difference determination module determines the pressure trigger time point based on the pressure transformer wake-up quantity, filters the starting point of continuous downstream temperature change, compares the time relationship between pressure change and temperature change, organizes temperature and pressure event records, and obtains the response time difference quantity. The deviation determination module, based on the response time difference, calls the stable operation record of the heat exchange station, compares the time difference between the current temperature and pressure event and the stable record, determines the category of heat and pressure transfer deviation in the pipe section, and obtains the degree of heat and pressure deviation. The correction output module, based on the thermal pressure deviation and pressure transformer wake-up amount, calls the valve opening record and pump group frequency log, matches the measurement point location with the execution object, adjusts the wireless transmission content and pump valve commands, and obtains the execution correction amount.
[0038] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. A heating pipe network temperature and pressure integrated wireless acquisition and control method, characterized in that, The method includes: S1: Based on the water supply pipe section, collect pressure readings at pressure tapping locations, match temperature readings at temperature measurement locations in the same pipe section, determine the stability of pressure changes according to the sampling sequence, select stable segments as dormant references, and obtain the static baseline quantity. S2: Based on the static baseline quantity, call the hibernation record, collect the current pressure reading of the pressure sensor, compare it with the hibernation reference, determine the direction of pressure change, identify the pressure increase or decrease trigger type, and obtain the pressure transformer wake-up quantity; S3: Based on the pressure transformer wake-up amount, determine the pressure trigger time point, screen the starting point of the continuous change in downstream temperature, compare the time relationship between pressure change and temperature change, organize the temperature and pressure event records, and obtain the response time difference. S4: Based on the response time difference, call the stable operation record of the heat exchange station, compare the time difference between the current temperature and pressure event and the stable record, determine the category of heat and pressure transfer deviation in the pipe section, and obtain the heat and pressure deviation degree; S5: Based on the hot-pressure deviation and pressure transformer wake-up amount, call the valve opening record and pump group frequency log, match the measurement point position with the execution object, adjust the wireless transmission content and pump valve command, and obtain the execution correction amount; The static baseline quantities include the steady-state pressure mean, sampling dispersion, and dormancy reference deviation; the pressure change wake-up quantities include pressure abrupt change, pressure change rate, and wake-up hold time; the response time difference quantities include the pressure phase anchor point, temperature response point, and temperature-pressure response hysteresis; the thermo-pressure deviation includes the heat transfer and transport reference time delay, current response time delay, and time delay deviation rate; and the execution correction quantities include valve opening increment, pump group frequency correction, and event frame field combination.
2. The heating pipe network temperature and pressure integrated wireless acquisition and regulation method according to claim 1, characterized in that, The specific steps for obtaining the static baseline quantity are as follows: S101: Based on the water supply pipe section, obtain the pressure reading at the pressure tapping location, compare the temperature reading collected by the temperature sensor at the same sampling time, filter the complete temperature and pressure records at the time, determine the correspondence between the pressure change direction and the temperature change direction, adjust the start and end boundaries of the continuous sampling window, and obtain the temperature and pressure synchronization sequence. S102: Based on the temperature and pressure synchronization sequence, compare the continuity of the pressure change direction, analyze the start and end times of the temperature change, determine the segment where the pressure changes first and the temperature does not respond continuously, screen the segment where the pressure changes slowly and the temperature sequence is continuous, and obtain the fluctuation window classification label. S103: Based on the fluctuation window classification mark, filter the stable window pressure readings, compare the number of pressure jumps in the same window with the sampling error level, determine the temperature time sequence continuity, adjust the retained pressure reading as the dormant reference, and obtain the static baseline quantity.
3. The heating pipe network temperature and pressure integrated wireless acquisition and regulation method according to claim 2, characterized in that, The specific steps for obtaining the voltage transformer wake-up amount are as follows: S201: Based on the static baseline quantity, compare the pressure tapping location identifier and pressure sensor identifier in the hibernation record, filter the identifier matching record, analyze the continuous relationship of hibernation start and end times, determine whether there is a time break in the reference reading, adjust the arrangement order of the reference reading, and obtain the hibernation reference index; S202: Based on the dormancy reference index, compare the instantaneous pressure reading with the corresponding dormancy reference, analyze the continuity relationship of the deviation direction at adjacent sampling times, determine whether the deviation direction belongs to upward deviation or downward deviation, adjust the deviation direction classification record, and obtain the pressure deviation mark; S203: Based on the pressure bias mark, compare the relationship between the output polarity of the pressure comparison circuit and the deviation direction, analyze the duration of continuous deviation of the instantaneous pressure reading, determine the boost trigger state or the depressurization trigger state, and obtain the voltage transformer wake-up amount.
4. The heating pipe network temperature and pressure integrated wireless acquisition and regulation method according to claim 3, characterized in that, The specific steps for obtaining the response time difference are as follows: S301: Based on the pressure transformer wake-up amount, analyze the trigger time corresponding to the pressure change amount, compare the continuity direction of the pressure change rate in adjacent sampling times, filter the first sampling time of the continuous deviation section in the same direction, and obtain the pressure transformer start mark. S302: Obtain the temperature sampling record of the downstream measuring point, compare the sampling time with the corresponding event window of the pressure transformer start mark, analyze the adjacent change direction of the temperature reading, filter the start time of the continuous section of the direction, and obtain the temperature change start mark. S303: Based on the pressure change start mark, call the temperature change start mark, compare the sampling timing of the pressure start point and the temperature start point, determine whether the pressure-first state or the temperature-first state is in advance, adjust the temperature and pressure response records within the same event, and obtain the response time difference.
5. The heating pipe network temperature and pressure integrated wireless acquisition and regulation method according to claim 4, characterized in that, The specific steps for obtaining the hot-press deviation are as follows: S401: Based on the response time difference, call the stable flow record of the heat exchange station, verify the pressure change time and temperature change time according to the pipe section number, compare the chronological relationship of the two types of time under the same sampling clock, filter the continuous time records, and obtain the stable time delay reference set. S402: Based on the stationary time delay reference set, match the pressure phase anchor point and temperature response point in the current event record, compare the current response interval and the stationary flow interval, determine whether the current event is ahead, behind or synchronized with the reference, and obtain the event timing bias mark. S403: Based on the event timing bias marker, analyze the deviation of the pipe segment's thermal pressure transfer, compare the current response delay with the heat transfer and transport reference delay, determine the pipe segment's transfer state type, and obtain the thermal pressure deviation degree.
6. The heating pipe network temperature and pressure integrated wireless acquisition and regulation method according to claim 5, characterized in that, The specific steps for obtaining the correction amount are as follows: S501: Based on the hot pressure deviation, compare the event trigger time with the valve opening change time, analyze the opening direction corresponding to the pressure increase trigger state, determine the pressure decrease trigger state and the opening recovery direction, filter the opening records with consistent event affiliation, and obtain the opening trigger association index. S502: Based on the opening trigger association index, compare the valve actuator address with the pump group controller address, analyze the water supply pipe section corresponding to the measuring point location identifier, determine the pipe section ownership relationship of the measuring point location, valve actuator and pump group controller, and obtain the address command mapping relationship; S503: Based on the address instruction mapping relationship, analyze the correspondence between the pipe segment transmission state and the trigger state, compare the valve opening change direction and the pump group frequency change direction, adjust the valve opening increment and the pump group frequency correction amount, and combine the associated event frame fields to obtain the execution correction amount.
7. The integrated wireless acquisition and control method for temperature and pressure in heating pipe networks according to claim 1, characterized in that, The pressure tapping location refers to the sampling point on the water supply pipe section where a pressure sensor or pressure tapping interface is installed, and the hibernation reference refers to the pressure reference data saved by the temperature and pressure acquisition terminal before entering hibernation.
8. The integrated wireless acquisition and control method for temperature and pressure in heating pipe networks according to claim 1, characterized in that, The pressure reading refers to the current pressure reading output by the pressure sensor at a single sampling point, and the trigger time point refers to the sampling time point corresponding to when the pressure comparison circuit identifies the boost trigger state or the depressurization trigger state.
9. A wireless data acquisition and control system for heating network temperature and pressure, the system being used to implement the wireless data acquisition and control method for heating network temperature and pressure as described in any one of claims 1-8, characterized in that, The system includes: The baseline generation module is based on the water supply pipe section. It collects pressure readings at pressure tapping locations, matches them with temperature readings at temperature measurement locations in the same pipe section, judges the stability of pressure changes according to the sampling time sequence, selects stable segments as dormant references, and obtains the static baseline quantity. Based on the static baseline quantity, the pressure transformer identification module calls the sleep record, collects the current pressure reading of the pressure sensor, compares it with the sleep reference, determines the direction of pressure change, identifies the pressure increase or decrease trigger type, and obtains the pressure transformer wake-up quantity. The time difference determination module determines the pressure trigger time point based on the pressure transformer wake-up amount, filters the starting point of continuous downstream temperature change, compares the time relationship between pressure change and temperature change, organizes temperature and pressure event records, and obtains the response time difference. Based on the response time difference, the deviation determination module calls the stable operation record of the heat exchange station, compares the time difference between the current temperature and pressure event and the stable record, determines the category of heat and pressure transfer deviation in the pipe section, and obtains the degree of heat and pressure deviation. Based on the thermo-pressure deviation and pressure transformer wake-up amount, the correction output module calls the valve opening record and pump group frequency log, matches the measurement point position with the execution object, adjusts the wireless transmission content and pump valve commands, and obtains the execution correction amount.
Citation Information
Patent Citations
Method for judging pressure fluctuation of heat supply pipe network
CN116123459A
Method for adjusting pressure and flow of water supply network
CN120848664A