CN113847993A - Automatic temperature measurement buoy and temperature measurement method - Google Patents
Automatic temperature measurement buoy and temperature measurement method Download PDFInfo
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- CN113847993A CN113847993A CN202110940944.7A CN202110940944A CN113847993A CN 113847993 A CN113847993 A CN 113847993A CN 202110940944 A CN202110940944 A CN 202110940944A CN 113847993 A CN113847993 A CN 113847993A
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- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 138
- 238000004804 winding Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims description 9
- 238000004861 thermometry Methods 0.000 claims description 6
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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Abstract
The invention relates to an automatic temperature measurement buoy and a temperature measurement method, wherein the automatic temperature measurement buoy comprises a buoy body and a cable, a driving assembly, a power supply assembly and a control line board which are used for winding and unwinding the cable are arranged on the buoy body, and the control line board is electrically connected with the driving assembly and the power supply assembly; meanwhile, the current water level depth is obtained by arranging a pressure sensor on the cable in a real-time calculation mode, so that the water level change is adapted.
Description
Technical Field
The invention relates to the technical field of buoy temperature measurement, in particular to an automatic temperature measurement buoy and a temperature measurement method.
Background
Water temperature monitoring is one of the important aspects of hydropower station operation and daily management. In order to obtain the overall spatial distribution of water temperature, the water temperatures at different storage depths of the reservoir, such as the water temperatures at every 1m below the water surface, need to be measured regularly for a long time. The existing measures are that a person takes a ship to a measurement water area, and a sensor extends into the water surface to different depths for manual measurement and recording. The manual temperature measurement is time-consuming and labor-consuming, and has potential safety hazard.
In addition, because the daily variation of the reservoir water level is large, especially in flood season or drought season, the variation of the reservoir water level can reach tens of meters, if a group of sensors connected by fixed-length cables are hung under a buoy for temperature acquisition, the acquisition scheme has the defects that firstly, the cost required by the required sensors and transmission cables thereof is too high; secondly, the water level change cannot be adapted, for example, when the water level is reduced, a plurality of sensors and cables at the bottom are sunk to the water bottom, and stones and aquatic weeds are easy to hook; thirdly, the water temperature data of continuous water sites is difficult to collect.
Disclosure of Invention
The invention aims to solve the technical problem of providing a buoy device for automatically measuring water temperatures at different depths and a temperature measuring method thereof, and solves the problem that the water temperatures are difficult to automatically collect.
The technical scheme includes that the automatic temperature measuring buoy comprises a buoy body and a cable, a driving assembly, a power supply assembly and a control line board are arranged on the buoy body and used for winding and unwinding the cable, the control line board is electrically connected with the driving assembly and the power supply assembly, the driving assembly comprises a winch and a driving motor, the output end of the driving motor is connected and linked with the winch, one end of the cable is wound on the winch, the cable is electrically connected with the control line board, the other end of the cable is connected with a balancing weight to stretch into water, one end of the cable stretching into the water is connected with a temperature sensor and a pressure sensor, and the temperature sensor and the pressure sensor are electrically connected with the control line board through the cable.
Preferably, the power supply module comprises a storage battery and a photovoltaic panel, a battery cavity is embedded in the buoy body, the storage battery and the control line board are both arranged in the battery cavity, the storage battery is electrically connected with the control line board, the photovoltaic panel is arranged on the buoy body, and the photovoltaic panel is electrically connected with the storage battery.
Preferably, the control line board is provided with a GPRS module for remotely transmitting and/or receiving data.
A temperature measuring method of an automatic temperature measuring buoy according to any one of claims 1 to 3, which comprises three temperature measuring modes, namely a continuous temperature measuring mode, a forward interval temperature measuring mode and a reverse interval temperature measuring mode, wherein a GPRS (general packet radio service) module on a control line board selects and starts the corresponding temperature measuring mode by receiving a signal of a remote server.
Preferably, the continuous temperature measurement mode comprises the following steps:
A1. the driving motor controls the winch to work and pay off the cable;
A2. the temperature sensor and the pressure sensor acquire pressure data and temperature data in real time and transmit the pressure data and the temperature data to the control line board;
A3. the control line board carries out filtering processing on the received pressure data and temperature data, and calculates the water level depth h of each group of data according to the processed pressure data; meanwhile, the GPRS module sends the current water level depth h and corresponding temperature data to a remote server in real time;
A4. the control wire board calculates and judges whether the cable reaches the water bottom or not according to the current pressure data and temperature data, and if so, the control wire board enters A5; if not, returning to A1;
A5. the control line board controls the pressure sensor and the temperature sensor to stop working;
A6. controlling the driving motor to reversely drive to drive the winch to roll up the cable;
A7. calculating and judging whether the cable is wound in place, if so, delaying n1Second later the drive motor stopsStopping working; otherwise, returning to A6;
the positive discontinuous temperature measurement mode comprises the following steps:
B1. the driving motor drives the winch to pay off the cable, and the control line board sets a temperature measurement serial number i to be 1;
B2. the temperature sensor and the pressure sensor acquire water pressure data and temperature data of corresponding water levels in real time and transmit the data to the control line board;
B3. the control line board carries out filtering processing on each group of received water pressure data and temperature data;
B4. the control line plate calculates the water level depth h of the current temperature sensor and the current pressure sensor according to the water pressure data;
B5. the control line board judges whether the current water level depth h is a temperature measuring point, if not, the control line board enters B6; if yes, the temperature measuring serial number i is i +1, the driving motor stops working, and n is delayed2After the second, the current water level depth and temperature data are sent to a remote server through a GPRS module in a control line board, and then the water level depth and temperature data enter B6;
B6. judging whether the current position reaches the water bottom; if yes, go to B8; if not, go to B7;
B7. the winch continues paying out and then returns to B4;
B8. the temperature sensor and the pressure sensor stop working;
B9. the driving motor drives the winch to reversely wind the cable;
B10. calculating and judging whether the cable is wound in place, if so, delaying n1The driving motor stops reeling the cable after the second; otherwise, returning to B9;
the reverse discontinuous temperature measurement mode comprises the following steps:
C1. the driving motor drives the winch to pay off the cable, real-time calculation is carried out, whether the cable reaches the water bottom or not is judged, if yes, the driving motor stops working, and n delay is carried out2Second later, C2 is entered; otherwise, the driving motor continues to work and pay off the cable until the cable reaches the water bottom;
C2. the pressure sensor collects the water pressure data corresponding to the current water level, and calculates and records the water level depth hsControl line board setting temperature measuring serial number j＝1；
C3. The driving motor runs reversely to drive the winch to roll up the cable; the temperature sensor and the pressure sensor collect water pressure data and temperature data corresponding to the current water level and transmit the data to the control line board, and the control line board carries out filtering processing on the received data and calculates the depth h of the current water level in real time;
C4. the control line board calculates and judges whether the current water level depth h is a temperature measuring point, if so, the temperature measuring serial number j is j +1, and then the control line board enters C5; otherwise, returning to C3;
C5. the driving motor stops working for a delay of n2After the second, the current water level depth and temperature data are sent to a remote server through a GPRS module in a control line board, and then the cable is continuously wound;
C6. the control wire board calculates and judges whether the cable is wound in place, if yes, n is delayed1And stopping winding the cable after the second, and returning to C3 if not.
Preferably, A is3、B4、C2The water level depth of (1) is calculated by taking h as P/(ρ, g), ρ is the density of water, g is the gravity acceleration, and P is the water pressure data detected by the pressure sensor.
Preferably, A is4、B6、C1The method for calculating and judging whether the temperature sensor and the pressure sensor reach the water bottom comprises the following steps:
the control line board records the current water level data at intervals of time T, and a group of data is obtained and expressed as:
[ h (t-k), h (t-k +1), …, h (t-1), h (t) ], k being the length of data retained;
calculating the standard deviation sigma (t) of the data, if sigma (t) < sigma0And the sensor is judged to be positioned at the bottom of the reservoir when the sensor is in the line releasing state currently.
Preferably, A is7、B9、C6The method for calculating and judging whether the cable is wound in place is to judge whether h is smaller than h0，h0And the distance of the cable on the horizontal plane is determined, and if the distance is equal to the horizontal plane, the cable is judged to be wound in place.
Preferably, B is5Is determined asWhether the front is at the temperature measuring point or not is determined by whether h (t-1) is satisfied or not<i·h△And h (t) is not less than i.h△If yes, h is a temperature measuring point, otherwise, h is not the temperature measuring point; said C is4The method for judging whether the current temperature measuring point is located is that whether h (t-1) is more than or equal to hs-i·h△And h (t)<hs-i·h△If so, then C4The current position is a temperature measuring point, otherwise, the current position is not the temperature measuring point; i is the number of temperature measurement, h△The set temperature measurement interval distance.
Preferably, the control line board matches and compares the detection data of the forward interval temperature measurement mode or/and the reverse interval temperature measurement mode with the water pressure data and the temperature data of the continuous temperature measurement mode, and when the water temperature data difference T of the same water level depth is different△>At 0.005 deg.C, the temperature distribution in the range of the water level depth obtained by continuous temperature measurement is corrected to T (h) + T△If the water level data difference T is the same as the water level depth△When the temperature is less than or equal to 0.005 ℃, the temperature distribution in the interval of the water level depth obtained by continuous temperature measurement does not need to be corrected.
The invention has the beneficial effects that: the buoy device for automatically measuring water temperatures at different depths is adopted, and the driving motor drives the winch to unwind or wind the cable, so that multi-phase water temperature data of continuous water point temperature measurement, forward interval point temperature measurement or reverse interval point temperature measurement are collected; meanwhile, the current water level depth is obtained by arranging a pressure sensor on the cable in a real-time calculation mode, so that the water level change is adapted.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic view of the internal structure of embodiment 1 of the present invention;
FIG. 3 is a flowchart of a continuous thermometry mode in embodiment 2 of the present invention;
FIG. 4 is a flowchart of a forward discontinuous temperature measurement mode in embodiment 2 of the present invention;
fig. 5 is a flowchart of a reverse discontinuous temperature measurement mode in embodiment 2 of the present invention.
As shown in the figure: 1. a buoy body; 2. a cable; 3. a drive assembly; 3-1, a winch; 3-2, driving a motor; 4. a power supply component; 4-1, a storage battery; 4-2, a photovoltaic panel; 5. a control line board; 6. a balancing weight; 7. a temperature sensor; 8. a pressure sensor; 9. a battery cavity; 10. a balancing component; 10-1, a balance cavity; 10-2 and a balance weight.
Detailed Description
The invention is further described below with reference to the accompanying drawings in combination with specific embodiments so that those skilled in the art can practice the invention with reference to the description, and the scope of the invention is not limited to the specific embodiments.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above terms should not be construed as limiting the present invention.
Detailed description of the preferred embodiment 1
Referring to fig. 1-2, an automatic temperature measurement buoy includes a buoy body 1 and a cable 2, the cable 2 in this embodiment is a four-core cable, a driving component 3, a power supply component 4 and a control line board 5 for winding and unwinding the cable 2 are disposed on the buoy body 1, the control line board 5 is electrically connected with the driving component 3 and the power supply component 4 for controlling the start and stop of the driving component, wherein:
the driving assembly 3 comprises a winch 3-1 and a driving motor 3-2, the output end of the driving motor 3-2 is connected and linked with the winch 3-1, one end of the cable 2 is wound on the winch 3-1, the cable 3-1 is electrically connected with the control line board 5, the other end of the cable 2 is connected with a balancing weight 6 and extends into water, the end part of the cable 2 extending into the water is connected with a temperature sensor 7 and a pressure sensor 8, and the temperature sensor 7 and the pressure sensor 8 are electrically connected with the control line board 5 through cables;
the power supply assembly 4 comprises a storage battery 4-1 and a photovoltaic panel 4-2, a battery cavity 9 is embedded in the buoy body 1, the storage battery 4-1 and the control line board 5 are both arranged in the battery cavity 9, the storage battery 4-1 is electrically connected with the control line board 5, the photovoltaic panel 4-2 is arranged on the buoy body 1, and the photovoltaic panel 4-2 is electrically connected with the storage battery 4-1;
be equipped with the GPRS module that is used for long-range transmission and/or received data on the control line board 5, control line board 5 passes through the GPRS module and communicates with remote server, control line board 5 is for using the STM32 singlechip as core control component.
In addition, in order to ensure the stability of the buoy body 1 on the water surface, a balance assembly 10 is arranged on the buoy body 1 at the symmetrical position of the power supply assembly 4, and the balance assembly 10 comprises a balance cavity 10-1 and a balance weight 10-2 arranged in the balance cavity 10-1.
Specific example 2
A temperature measurement method of an automatic temperature measurement buoy comprises a continuous temperature measurement mode, a forward interval temperature measurement mode and a reverse interval temperature measurement mode, wherein a GPRS (general packet radio service) module on a control line board 5 selects and starts the corresponding temperature measurement mode by receiving a signal of a remote server; wherein:
as shown in fig. 3, the continuous thermometry mode includes the following steps:
A1. the driving motor 3-2 controls the winch 3-1 to work and pay off the cable 2;
A2. the temperature sensor 7 and the pressure sensor 8 collect pressure data and temperature data in real time and transmit the pressure data and the temperature data to the control wire board 5;
A3. the control wire board 5 carries out filtering processing on the received pressure data and temperature data, and calculates the water level depth h of each group of data according to the processed pressure data; meanwhile, the GPRS module sends the current water level depth h and corresponding temperature data to a remote server in real time;
A4. the control wire board 5 calculates and judges whether the cable 2 reaches the water bottom according to the current pressure data and the temperature data, and if so, the control wire board enters A5; if not, returning to A1;
A5. the control wire board 5 controls the pressure sensor 8 and the temperature sensor 7 to stop working;
A6. controlling the driving motor 3-2 to reversely drive to drive the winch 3-1 to wind the cable 2;
A7. calculating and judging whether the cable 2 is wound in place or not, if so, delaying n1After the second, the driving motor 3-2 stops working; otherwise, returning to A6;
as shown in fig. 4, the forward discontinuous temperature measurement mode includes the following steps:
B1. the driving motor 3-2 drives the winch 3-1 to pay off the cable 2, and the control line board 5 sets a temperature measurement serial number i to be 1;
B2. the temperature sensor 7 and the pressure sensor 8 collect water pressure data and temperature data of corresponding water levels in real time and transmit the data to the control line board 5;
B3. the control line board 5 carries out filtering processing on each group of received water pressure data and temperature data;
B4. calculating the water level depth h of the current temperature sensor 7 and the current pressure sensor 8 according to the water pressure data;
B5. the control line board judges whether the current water level depth h is a temperature measuring point, if not, the control line board directly enters B6; if yes, the temperature measuring serial number i is equal to i +1, the driving motor 3-2 is paused, and n is delayed2After second, the current water level depth and temperature data are sent to a remote server through a GPRS module in a control line board 5, and then the water level depth and temperature data enter B6;
B6. judging whether the current water level depth h reaches the water bottom, if so, entering B8; if not, go to B7;
B7. the winch continues to pay out the cable and then returns to B4;
B8. the temperature sensor 7 and the pressure sensor 8 stop working;
B9. the driving motor 3-2 drives the winch 3-1 to reversely wind the cable 2;
B10. calculating and judging whether the cable 2 is wound in place or not, if so, delaying n1Stopping driving the motor 3-2 to wind the cable 2 after the second; otherwise, returning to B9;
as shown in fig. 5, the reverse intermittent temperature measurement mode includes the following steps:
C1. the driving motor 3-2 drives the winch 3-1 to pay off the cable 2, real-time calculation is carried out, whether the cable 2 reaches the water bottom or not is judged, if yes, the driving motor 3-2 stopsOperation, delay n2Second later, C2 is entered; otherwise, the driving motor 3-2 continues to work to release the cable 2 until the cable 2 reaches the water bottom;
C2. the pressure sensor 8 collects the water pressure data corresponding to the current water level, calculates and records the water level depth hsThe control line board 5 sets the temperature measurement serial number j to 1;
C3. the driving motor 3-2 runs reversely to drive the winch 3-1 to wind up the cable 2; the temperature sensor 7 and the pressure sensor 8 collect water pressure data and temperature data corresponding to the current water level and transmit the water pressure data and the temperature data to the control line board 5, the control line board 5 carries out filtering processing on the received pressure data and temperature data, and the depth h of the current water level is calculated in real time;
C4. the control line board 5 calculates and judges whether the current position is a temperature measuring point, if so, the temperature measuring serial number j is j +1, and then the C5 is entered, otherwise, the C3 is returned;
C5. the driving motor 3-2 stops working with a delay of n2After the second, the current water level depth and temperature data are sent to a remote server through a GPRS module in the control line board 5, and then the cable 2 is continuously wound;
C6. the control wire board calculates and judges whether the cable 2 is wound in place, if yes, the winding of the cable 2 is stopped after n1 seconds, and if not, the control wire board returns to C3;
the water level depth calculation method of the components A3, B4 and C2 is h-P/(rho.g), rho is the density of water, g is the gravity acceleration, and P is the water pressure data detected by the pressure sensor 8;
the method for calculating and judging whether the temperature sensor 7 and the pressure sensor 8 reach the water bottom in the A4, the B6 and the C1 comprises the following steps:
the control line board 5 records the current water level data at intervals of time T, and a group of data is obtained and expressed as: [ h (t-k), h (t-k +1), …, h (t-1), h (t) ], k being the length of data retained;
calculating the standard deviation sigma (t) of the data, if sigma (t) < sigma0If the cable 2 is currently in the state of releasing the cable, the sensor is judged to be positioned at the bottom of the reservoir;
a is described7、B9、C6The method for calculating and judging whether the cable 2 is wound in place is to judge whether h is smaller than h0，h0The distance of the cable 2 in the horizontal plane is determined, and if the distance is equal to the distance, the cable 2 is judged to be reeled in place.
B is5Judging whether the current temperature measuring point is at h (t-1)<i·h△And h (t) is not less than i.h△If yes, h is a temperature measuring point, otherwise, h is not the temperature measuring point; said C is4The method for judging whether the current temperature measuring point is located is that whether h (t-1) is more than or equal to hs-i·h△And h (t)<hs-i·h△If so, then C4The current position is a temperature measuring point, otherwise, the current position is not the temperature measuring point; i is the number of temperature measurement, h△For measuring the distance of the set temperature
In addition, the control line board 5 matches and compares the detection data of the forward interval temperature measurement mode or/and the reverse interval temperature measurement mode with the pressure data, the temperature data and the water level depth h detected by the continuous temperature measurement mode, and when the water temperature data difference T of the same water level depth is obtained△>At 0.005 deg.C, the temperature distribution in the range of the water level depth obtained by continuous temperature measurement is corrected to T (h) + T△If the water level data difference T is the same as the water level depth△When the temperature is less than or equal to 0.005 ℃, the temperature distribution in the interval of the water level depth obtained by continuous temperature measurement does not need to be corrected.
Claims (10)
1. An automatic temperature measurement buoy comprises a buoy body (1) and a cable (2), and is characterized in that a driving assembly (3) used for winding and unwinding the cable (2), a power supply assembly (4) and a control line board (5) are arranged on the buoy body (1), the control line board (5) is electrically connected with the driving assembly (3) and the power supply assembly (4), the driving assembly (3) comprises a winch (3-1) and a driving motor (3-2), the output end of the driving motor (3-2) is connected and linked with the winch (3-1), one end of the cable (2) is wound on the winch (3-1), the cable (2) is electrically connected with the control line board (5), the other end of the cable (2) is connected with a balancing weight (6) to stretch into water, one end of the cable (2) stretching into the water is connected with a temperature sensor (7) and a pressure sensor (8), the temperature sensor (7) and the pressure sensor (8) are electrically connected with the control line board (5) through the cable (2).
2. The automatic temperature measurement buoy as claimed in claim 1, wherein the power supply assembly (4) comprises a storage battery (4-1) and a photovoltaic panel (4-2), a battery cavity (9) is embedded in the buoy body (1), the storage battery (4-1) and the control line board (5) are both arranged in the battery cavity (9), the storage battery (4-1) is electrically connected with the control line board (5), the photovoltaic panel (4-2) is arranged on the buoy body (1), and the photovoltaic panel (4-2) is electrically connected with the storage battery (4-1).
3. The automatic temperature measuring buoy as claimed in claim 2, wherein the control line board (5) is provided with a GPRS module for remote data transmission and/or reception.
4. A method for measuring temperature of an automatic temperature measuring buoy according to any one of claims 1 to 3, which comprises three temperature measuring modes, namely a continuous temperature measuring mode, a forward interval temperature measuring mode and a reverse interval temperature measuring mode, wherein the GPRS module on the control line board (5) selects and starts the corresponding temperature measuring mode by receiving a signal of a remote server.
5. The method of measuring temperature according to claim 4,
the continuous thermometry mode comprises:
A1. the driving motor (3-2) controls the winch (3-1) to work and pay off the cable (2);
A2. the temperature sensor (7) and the pressure sensor (8) collect pressure data and temperature data in real time and transmit the data to the control line board (5);
A3. the control line board (5) carries out filtering processing on the received pressure data and temperature data, and calculates the water level depth h of each group of data according to the processed pressure data; meanwhile, the GPRS module sends the current water level depth h and corresponding temperature data to a remote server in real time;
A4. the control line board (5) calculates and judges whether the cable reaches the water bottom according to the current water level depth h, and if so, the control line board enters A5; if not, returning to A1;
A5. the control wire board (5) controls the pressure sensor (8) and the temperature sensor (7) to stop working;
A6. controlling the driving motor (3-2) to reversely drive to drive the winch (3-1) to wind the cable (2);
A7. calculating and judging whether the cable (2) is wound in place, if so, delaying n1After the second, the driving motor (3-2) stops working; otherwise, returning to A6;
the positive discontinuous temperature measurement mode comprises the following steps:
B1. the driving motor (3-2) drives the winch (3-1) to release the cable (2), and the control line board (5) sets a temperature measurement serial number i to be 1;
B2. the temperature sensor (7) and the pressure sensor (8) collect water pressure data and temperature data of corresponding water levels in real time and transmit the data to the control line board (5);
B3. the control line board (5) carries out filtering processing on each group of received water pressure data and temperature data;
B4. the control line plate (5) calculates the water level depth h of the current temperature sensor (7) and the current pressure sensor (8) according to the water pressure data;
B5. the control line board judges whether the current water level depth h is a temperature measuring point, if not, the control line board directly enters B6; if yes, the temperature measuring serial number i is equal to i +1, the driving motor (3-2) stops working, and n is delayed2After second, the current water level depth and temperature data are sent to a remote server through a GPRS module in a control line board (5), and then the data enter B6;
B6. judging whether the current water level depth h reaches the water bottom, if so, entering B8; if not, go to B7;
B7. the winch (3-1) continues to pay out the cable (2) and then returns to B4;
B8. the temperature sensor (7) and the pressure sensor (8) stop working;
B9. the driving motor (3-2) drives the winch to reversely wind the cable;
B10. calculating and judging whether the cable (2) is wound in place, if so, delaying n1After seconds, the driving motor (3-2) stops reeling the cable (2); otherwise, returning to B9;
the reverse discontinuous temperature measurement mode comprises:
C1. the driving motor (3-2) drives the winch (3-1) to release the cable (2)Calculating and judging whether the cable (2) reaches the water bottom in real time, if so, stopping the work of the driving motor (3-2), and delaying n2Second later, C2 is entered; otherwise, the driving motor (3-2) continues to work to release the cable (2) until the cable (2) reaches the water bottom;
C2. the pressure sensor (8) collects the water pressure data corresponding to the current water level, calculates and records the depth h of the water levelsThe control line board (5) sets the temperature measurement serial number j to be 1;
C3. the driving motor (3-2) runs reversely to drive the winch (3-1) to roll up the cable (2); the temperature sensor (7) and the pressure sensor (8) collect water pressure data and temperature data corresponding to the current water level and transmit the water pressure data and the temperature data to the control line board (5), the control line board (5) carries out filtering processing on the received water pressure data and temperature data, and the depth h of the current water level is calculated in real time;
C4. the control line board (5) calculates and judges whether the current position is a temperature measuring point, if so, the temperature measuring serial number j is j +1, and then the operation enters C5; otherwise, returning to C3;
C5. the driving motor (3-2) stops working with a delay of n2After second, the current water level depth and temperature data are sent to a remote server through a GPRS module in a control line board (5);
C6. the control wire board calculates and judges whether the cable (2) is wound in place, if yes, n is delayed1And stopping winding the cable (2) after seconds, and otherwise, returning to C3.
6. A method for measuring temperature according to claim 5, wherein A is the same as A3、B4、C3The water level depth is calculated by the method (h) P/(rho. g), wherein rho is the density of water, g is the gravity acceleration, and P is the water pressure data detected by the pressure sensor (8).
7. The method according to claim 5, wherein A is the same as A4、B6、C1The method for calculating and judging whether the temperature sensor (7) and the pressure sensor (8) reach the water bottom comprises the following steps:
the control line board (5) records current water level data at intervals of time T, and a group of data is obtained and expressed as:
[ h (t-k), h (t-k +1), …, h (t-1), h (t) ], k being the length of data retained;
calculating the standard deviation sigma (t) of the data, if sigma (t) < sigma0And the current state of the cable (2) is in a cable releasing state, the temperature sensor (7) and the pressure sensor (8) are judged to be positioned at the bottom of the reservoir.
8. The method according to claim 5, wherein A is the same as A7、B9、C6The method for calculating and judging whether the cable (2) is wound in place is to judge whether h is smaller than h0，h0The distance of the cable (2) on the horizontal plane is determined, and if the distance is equal to the distance, the cable (2) is judged to be wound in place.
9. The method of claim 5, wherein B is5The method for judging whether the current temperature measuring point is located is to judge whether h (t-1) is met<i·h△And h (t) is not less than i.h△If yes, h is a temperature measuring point, otherwise, h is not the temperature measuring point; said C is4The method for judging whether the current temperature measuring point is located is that whether h (t-1) is more than or equal to hs-i·h△And h (t)<hs-i·h△If so, then C4The current position is a temperature measuring point, otherwise, the current position is not the temperature measuring point; i is the number of temperature measurement, h△The set temperature measurement interval distance.
10. The thermometric method according to claim 5, wherein the control wire plate (5) matches and compares the detected water pressure data, temperature data and water level depth h of the forward interval thermometry mode or/and the reverse interval thermometry mode with the water pressure data, temperature data and water level depth h of the continuous thermometry mode, and when the water temperature data difference T of the same water level depth is T△>At 0.005 deg.C, the temperature distribution in the range of the water level depth obtained by continuous temperature measurement is corrected to T (h) + T△If the water level data difference T is the same as the water level depth△When the temperature is less than or equal to 0.005 ℃, the temperature in the interval of the water level depth obtained by continuous temperature measurementThe distribution need not be modified.
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