Method and device for intelligently measuring vertical distance

Abstract

The invention discloses a vertical distance intelligent measuring method and device, the method uses a distance measuring device and an interface sensor to complete intelligent measurement, and the measuring device comprises a housing, a support, a reel, the distance measuring device, the interface sensor, a working circuit, a display and a battery; during working, the device is held by hand, the winding drum is rotated to enable the probe of the interface sensor to fall through self weight for detection, and the distance measuring device automatically records measured data; according to the invention, the measurement precision can reach a millimeter level; the depth distance of the liquid level of the liquid, the depth distance from the liquid level of the clear liquid to the bottom of the liquid, the respective depth distances of two clear and immiscible liquids in the same container, the approximate depth distance from the liquid level of the clear liquid to the turbid liquid containing the foreign matter precipitate, the distance perpendicular to the bottom and the like can be detected and measured; the method can be applied to the fields of chemical engineering, petroleum, light industry, medicine, food, hydraulic engineering, environmental protection and the like.

Description

Technical Field

[0001] The invention belongs to the field of measurement technology and relates to a vertical distance measurement method and a device thereof. Background Art

[0002] Among the well-known mobile sounding technologies, non-contact detection devices and technologies include: handheld ultrasonic liquid level detectors, which determine the distance to the measured position by emitting ultrasonic pulses and receiving echoes, and calculating the sound wave propagation time; handheld radar liquid level detectors, which determine the distance to the measured position by emitting high-frequency electromagnetic waves and calculating the round-trip time of the electromagnetic waves based on the reflected signals; and handheld laser rangefinders, which measure distance using the reflection time of laser pulses. The other type is mechanical contact measurement technology, and the detection devices and technologies used include: electric water level gauge, which is composed of a probe, a steel ruler or measuring rope, a reel, a frame, a control panel, a battery and other devices. The detection method is completed through the water resistance contact point of the probe. When the probe contacts the water surface, a short circuit is formed, triggering the circuit to work, and the water level position is obtained through the steel ruler or measuring rope scale. It is specially used to vertically measure the depth distance of the water surface; oil dipstick, which is composed of a handle, a ruler frame, a crank, a ruler, a ruler, a weight, a lock, an oil scraper, a bracket and other components. The detection method is to drive the ruler to fall into the liquid through the weight, and obtain the liquid level position and liquid depth by applying water test paste or oil test paste on the ruler and checking the ruler scale. In the above-mentioned technical methods and devices, ultrasonic liquid level detectors and radar liquid level detectors can only detect the liquid surface position, but cannot detect the depth of the liquid, let alone the boundary position of two transparent and immiscible liquids in the same container; laser rangefinders mainly detect the distance between the gas and solid boundary position, and generally produce large errors when vertically detecting clear liquids; although electric water level gauges and oil dipsticks can be used to detect the liquid surface position and liquid depth, they are also unable to detect the boundary position of two transparent and immiscible liquids in the same container, and when measuring the liquid depth, oil paste or water paste is required to generate the liquid surface position mark. Summary of the Invention

[0003] The purpose of the present invention is to address the above-mentioned shortcomings in the above-mentioned known vertical measurement technology and provide an intelligent vertical distance measurement method and device. The measurement accuracy of the present invention can reach the millimeter level, and can detect and measure the depth distance of the liquid surface, the depth distance from the clear liquid surface to the bottom of the liquid, the respective depth distances of two clear and immiscible liquids in the same container, the approximate depth distance from the clear liquid surface to the turbid liquid containing foreign matter precipitation, the vertical bottom distance, etc.

[0004] A vertical distance intelligent measurement method specifically comprises the following steps: Step 1: Select an interface sensor as the probe. The length of the fishing line should meet the distance measurement requirements. Then pass the fishing line through a relatively fixed distance measuring device, and the device will measure the distance the fishing line passes. Step 2: Connect the power cord of the interface sensor fishing line core to the adapter power supply; Step 3: Add an interface sensor detection signal receiving interface to the working circuit of the ranging device, which is responsible for receiving the interface sensor detection signal. The signal is uniformly identified and processed by the processor in the working circuit of the ranging device; Step 4: Start the working circuit, and then place the interface sensor probe detection base point and the measurement base point on the same horizontal plane by fishing with a fishing line; Step 5: Initialize the ranging data; Step 6: Release the interface sensor fishing line, causing the interface sensor probe to fall downward, and use the distance measuring device to measure the vertical distance the fishing line passes through. When the fishing line is slack, the release of the fishing line is terminated. Step seven, during the process of releasing the fishing line, the interface sensor probe sends a signal to the distance measuring device when detecting the boundary surface between gas and liquid, the boundary surface between two clear and immiscible liquids in the same container, the approximate boundary surface between a clear liquid and a turbid liquid after contamination and precipitation in the same container, the boundary surface between a clear liquid and a solid, the boundary surface between gas and a solid, or the boundary surface between gas and a semi-fluid. The processor in the working circuit of the distance measuring device records the vertical distance measured by the distance measuring device at the time point corresponding to the signal sent by the interface sensor. The vertical distance is the distance from the measurement base point to the interface. Step 8: Read the measurement data through the display on the distance measuring device to complete the measurement of the required vertical distance.

[0005] A vertical distance intelligent measuring device includes: an interface sensor, a distance measuring device, a housing, a bracket, a reel, a working circuit, a display, and a battery; the fishing line of the interface sensor passes through the distance measuring device and is wound around the reel, the end of the fishing line is fixed to the bottom of the reel groove, the reel is fixed relative to the housing via the bracket, the distance measuring device is fixed in the housing cavity, the working circuit and the battery are fixed in the housing cavity or are fixed in a dispersed manner in the housing cavity and the reel core space, and the display is fixed to the housing and exposed; the distance measuring device is a device that detects the length of the fishing line passing through the interface sensor by a distance measuring wheel, and is composed of a distance measuring wheel, a code disk, a sensor, a guide wheel and its counting operation circuit; the interface sensor includes a fishing line and a probe.

[0006] Furthermore, the working circuit refers to the general term for the working circuit of the measuring device, including the interface sensor driving circuit, the interface sensor signal modulation circuit and receiving circuit, the code disk counting circuit, the data calculation circuit, the display driving circuit, and also includes the data storage circuit, the electric reel driving and control circuit, the device working status indication circuit, etc.

[0007] Furthermore, the interface sensor is a photoelectric interface sensor used to detect the boundary interface between gas and liquid, the boundary interface between gas and solid, the boundary interface between two clear and immiscible liquids, the approximate boundary interface between the same clear liquid and the turbid liquid after contamination and precipitation, and the boundary interface between clear liquid and solid.

[0008] Furthermore, the inner core of the fishing line of the interface sensor has a power line and a signal transmission line. The fishing line refers to the fishing line or fishing rope that comes with the interface sensor, or the transmission fishing line and fishing rope with an armored sheath. Furthermore, the detection signal output by the signal transmission line of the inner core of the interface sensor fishing line and the working circuit are coupled by brushes, or contactless mutual inductance coupling using two coils, or contactless coupling using Hall sensors, or contactless coupling using light transmission, or wireless coupling of electromagnetic signal emission and electromagnetic signal reception, or near-field communication coupling using NFC technology; the so-called coupling refers to the transmission method between the interface sensor detection signal and the working circuit.

[0009] Furthermore, the housing has a handheld or portable handle structure, or a handheld or portable handle is additionally fixed on the housing.

[0010] Furthermore, the code disk used in the distance measuring device is of incremental type, and the increment refers to determining the change in angle or displacement by counting the pulse signals generated by the rotation of the code disk.

[0011] Furthermore, the reel is in the shape of an "I" or an "H", including a hand-cranked reel, a spring reel, and an electric reel.

[0012] Furthermore, a reel locker is provided on the housing, and the locker refers to a mechanism that limits the free rotation of the reel.

[0013] Furthermore, a data output standard communication interface circuit and its interface are provided in the working circuit, and the interface circuit complies with the requirements of the communication protocol.

[0014] During operation, the detection point of the interface sensor probe and the measurement base point are placed on the same horizontal plane in a fishing manner, the measurement data is initialized, the reel is rotated to release the fishing line, and the interface sensor falls downward through the fishing line and its own weight. When the interface sensor probe detects the boundary interface between gas and liquid, or the boundary interface between two clear and immiscible liquids in the same container, or the approximate boundary interface between clear liquid and turbid liquid after contaminated precipitation in the same container, or the boundary interface between clear liquid and solid / the boundary interface between gas and solid, or the boundary interface between gas and semi-fluid, a detection signal will be sent out. The working circuit records the distance measured by the distance measuring device at each time point according to the signal sequence and the corresponding time point. The data is the straight-line distance from the measurement base point to each interface; the measurement data is read by the display driven by the working circuit, and the fishing line and the interface sensor are recovered by rotating the reel in the opposite direction after the measurement is completed.

[0015] The vertical distance measurement method and device provided by the present invention are used to measure the vertical distance between the boundary interface between gas and liquid, or the boundary interface between two clear and immiscible liquids in the same container, or the approximate boundary interface between a clear liquid and a turbid liquid after contamination and precipitation in the same container, or the boundary interface between a clear liquid and a solid, or the boundary interface between a gas and a solid, or the boundary interface between a gas and a semi-fluid and a measurement base point. It can also simultaneously measure the depth of various liquids, or the respective depths of two clear and immiscible liquids in the same container, or the approximate depth of the clear liquid in a clear liquid and a turbid liquid after contamination and precipitation in the same container, or the depths of various wells and the depth of the clear liquid in the wells. It is mainly used in the fields of chemical industry, petroleum, light industry, medicine, food, water conservancy engineering, environmental protection, etc.

[0016] The beneficial effects of the present invention are as follows: the present invention further improves the working efficiency and measurement accuracy of the mechanical vertical distance measurement, expands the measurement range, and at the same time provides a new technical method and device for measuring the respective depths of two clear and immiscible liquids in the same container, and the approximate depth of the clear liquid in the clear liquid and the turbid liquid after contaminated precipitation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. Figure 1 It is a schematic cross-sectional structure diagram of a manual intelligent measuring device in the present invention; Figure 2 It is a schematic cross-sectional view of a manual intelligent measuring device with electric assist function in the present invention; Figure 3 This is a schematic diagram of a working structure of a method of coupling interface sensor signals by electromagnetic mutual induction in the present invention; Figure 4 yes Figure 3A partial enlarged view of Figure 5 This is a schematic diagram of a working structure using a Hall sensor coupled with an interface sensor signal in the present invention; Figure 6 This is a schematic diagram of the working structure of a sensor signal using a photoelectric effect coupling interface in the present invention; Figure 7 It is a schematic cross-sectional structure diagram of an electric intelligent measuring device in the present invention; Explanation of the numbers in the figure: 1. Shell; 2. Battery; 3. Working circuit; 4. Display; 5. Double-sided porcelain eye; 6. Sensor; 7. Guide wheel; 8. Distance measuring wheel; 9. Code disk; 10. Anti-bend line outlet mouth; 11. Fishing line; 12. Probe; 13. Bracket; 14. Lock; 15. Crank handle; 16. Reel; 17. Auxiliary motor; 18. Modulation circuit; 19. Primary coil; 20. Secondary coil; 21. Shaft; 22. Auxiliary battery; 23. Electromagnetic coil; 24. Hall sensor; 25. LED light source; 26. Photoelectric receiving tube; 27. Reduction motor. DETAILED DESCRIPTION

[0018] In the embodiments of the present invention: The interface sensor is disassembled into two parts: a fishing line 11 and a probe 12. All transmission wires of the probe 12 are in the inner core of the fishing line 11, and there are signal output wires and a working power line of the probe. In the embodiment described in the present invention, the interface sensor refers to the general term for the probe 12 and the fishing line 11.

[0019] The bracket 13 has two structures: a one-end fixed bracket and a two-end fixed bracket. Its function is to connect the shell 1 and the reel 16 into a mutually fixed whole; in the one-end fixed bracket, one end of the shaft 21 is fixed to the bracket 13 and the other end is suspended; in the two-end fixed bracket, both ends of the shaft 21 are fixed to the bracket 13.

[0020] In the measuring device, when using a fixed bracket at both ends, the crank 15 is fixed on the shaft head of the shaft 21, such as Figure 1 and Figure 2 When using one end of the fixed bracket, the crank 15 can also be simply fixed to the side circumference of the reel 16 is not affected by the bracket, so that the rocker 15 on the crank can be omitted, such as Figure 3 、 Figure 5 and Figure 6 shown.

[0021] The distance measuring device consists of a distance measuring wheel 8, a code disk 9, a sensor 6 and two guide wheels 7. During operation, the fishing line 11 passes between the distance measuring wheel 8 and the guide wheels 7. The squeezing effect of the guide wheels 7 prevents the fishing line 11 from slipping while passing through the distance measuring wheel 8 and drives the distance measuring wheel 8 to rotate. The code disk 9 rotates synchronously with the distance measuring wheel 8. The sensor 6 recognizes the signal from the code disk 9. The processor in the working circuit 3 obtains the length of the fishing line 11 passing through the distance measuring wheel 8 based on the signal from the code disk 9 and the size of the distance measuring wheel 8.

[0022] The function of the reel 16 itself is to wind, store, and release the fishing line 11 of the interface sensor. In practice, there are three types of reels: hand-cranked reels, spring reels, and electric reels, with an "I" or "H" shape. The hand-cranked reel rotates the reel 16 by turning the crank 15 to complete the winding, storage, and release of the fishing line 11. The spring reel has a spring belt installed inside the reel, which can automatically store or recycle the fishing line 11, but the fishing line 11 needs to be pulled outward by the crank or by pulling the handle. In the measurement of relatively deep liquid levels, the fishing line 11 used is also relatively long, so an electric auxiliary reel or electric reel can be used in this device. The end of the fishing line 11 on the reel 16 is fixed to the bottom of the reel groove, and the transmission wire inside the core is connected according to the requirements of the device structure. When the working power supply of the sensor 6 is powered by the auxiliary battery 22 built into the reel 16, the power supply wire of the inner core of the fishing line 11 on the reel is connected to the power supply of the auxiliary battery 22 built into the reel 16, and the signal output wire is connected to the modulation circuit 18 provided in the reel 16. After modulation processing, the sensor 6 can be connected to the working circuit 3 by brush coupling, or non-contact mutual inductance coupling using two coils, or non-contact coupling using a Hall sensor 24, or non-contact coupling using photoelectric signal transmission, or wireless coupling of electromagnetic signal wireless transmission and electromagnetic signal wireless reception, or near field communication coupling using NFC technology, such as: The signal output wire of the inner core of the fishing line 11 is connected to the modulation circuit 18 provided in the reel 16. After modulation processing, it drives the electromagnetic coil 23 that rotates with the reel, and then drives the Hall sensor 24 fixed on the bracket 13 to work through the magnetic field generated by the shaft 21. The Hall sensor 24 then provides a detection signal to the working circuit 3, realizing non-contact transmission of the signal.

[0023] The signal output wire of the inner core of the fishing line 11 is connected to the modulation circuit 18 provided in the reel 16. After modulation processing, it drives the LED light source 25 fixed on the reel. The light signal is transmitted to the other end of the shaft through a hollow shaft 21, and then received by the photoelectric receiving tube 26 fixed on the bracket 13. The photoelectric receiving tube regenerates the detection signal and provides it to the working circuit, realizing non-contact transmission of the signal.

[0024] The signal output wire of the inner core of the fishing line 11 is connected to the modulation circuit 18 provided in the reel 16. After modulation processing, it drives an electromagnetic signal wireless transmitter, which is then received by the wireless receiving device in the working circuit 3 to realize non-contact transmission of the signal.

[0025] The signal output wire of the inner core of the fishing line 11 is connected to the modulation circuit 18 provided in the reel 16. After modulation processing, the signal output wire adopts the near field communication NFC technology to realize contactless transmission.

[0026] The vertical distance measuring device of the present invention includes a housing 1, a bracket 13, a reel 16, a distance measuring device, an interface sensor, a working circuit 3, a display 4, a battery 2, and an auxiliary battery 22. During operation, the device is held by hand, and the fishing line 11 is released by rotating the reel 16, causing the probe 12 of the interface sensor to fall downward due to its own weight. When performing vertical distance measurement, the device is first turned on, and then the detection base point and the measurement base point of the interface sensor probe are placed on the same horizontal plane in a fishing posture. The measurement data is initialized, and the reel 16 is rotated to release the fishing line 11, causing the probe 12 of the interface sensor to fall downward and to the bottom due to its own weight. The fishing line 11 simultaneously drives the distance measuring wheel 8 in the distance measuring device, so that the distance the probe 12 falls is measured.

[0027] During the falling process of the probe 12, when it encounters the boundary interface between gas and liquid, the boundary interface between two clear and immiscible liquids in the same container, the approximate boundary interface between clear liquid and turbid liquid after contamination and precipitation in the same container, the boundary interface between clear liquid and solid, the boundary interface between gas and solid, or the boundary interface between gas and semi-fluid, a detection signal will be emitted. The working circuit 3 records the distance measured by the distance measuring device to each time point according to the signal sequence and the corresponding time point. This distance is the straight-line distance from the measurement base point to each interface, completing distance measurements such as liquid surface depth, liquid depth, depth of different liquids, approximate depth of clear liquid and turbid liquid, vertical distance to bottom depth, etc.

[0028] According to the measurement data, the measurement object can be determined based on the signal sequence and the corresponding time point, the distance corresponding to the time point, and the physical characteristics of the measured object, such as: The distance corresponding to the first signal transmitted by the probe 12 is: the depth from the measurement base point to the liquid surface, or the depth directly touching the bottom.

[0029] The distance corresponding to the second signal transmitted by the probe 12 to the first signal is: the depth distance from the clear liquid surface to the bottom of the liquid, or the depth distance from the clear liquid surface to the boundary interface of another incompatible liquid below the liquid (the thickness of the upper liquid), or the approximate depth distance from the clear liquid surface to the boundary of the turbid liquid containing foreign matter (the measured distance is slightly larger than the actual thickness of the clear liquid).

[0030] The distance from the third signal transmitted by the probe 12 to the second signal corresponds to the depth from the top of the liquid with greater density in the two immiscible clear liquids to the bottom of the liquid below, or the approximate depth of the boundary between the liquid and the turbid liquid containing foreign matter (the measured distance is slightly larger than the actual thickness of the clear liquid).

[0031] The same rule applies.

[0032] The measurement data is processed, recorded and stored by the working circuit 3 and can be read by the driving display 4; after the measurement is completed, the fishing line 11 and the probe 12 are recovered by the reverse rotating reel 16. Example

[0033] See also Figure 1 , Figure 1 This is a schematic cross-sectional view of a manual intelligent measuring device according to the present invention. The device comprises a housing 1, a battery 2, a working circuit 3, a display 4, a double-sided ceramic eye 5, a sensor 6, a guide wheel 7, a distance-measuring wheel 8, a code disk 9, an anti-bend line outlet 10, a fishing line 11, a probe 12, a bracket 13, a lock 14, a crank 15, and a reel 16. The sensor 6, guide wheel 7, distance-measuring wheel 8, and code disk 9 form the distance measuring device. The interface sensor is disassembled into two components: the fishing line 11 and the probe 12. The reel 16 has a built-in three-wire static and dynamic brush device inside its core, which connects the interface sensor's power supply and signal wires to the working circuit 3. The interface sensor's power supply is supplied by the working circuit 3.

[0034] In this embodiment, the battery 2, the working circuit 3, the display 4, the double-sided porcelain eye 5, the distance measuring device, the anti-bend outlet nozzle 10, and the bracket 13 are all fixed by the housing 1; the reel 16 is mounted on the bracket 13 fixed at both ends via a rotating shaft and is manually rotated by a crank 15; the fishing line 11 of the interface sensor passes through the anti-bend outlet nozzle 10, between the guide wheel 7 and the distance measuring wheel 8, and then passes through the double-sided porcelain eye 5 and is wound in the H-shaped groove of the reel 16. The end of the fishing line 11 is fixed to the bottom of the reel groove, and the transmission wire in the inner core of the fishing line is connected to the built-in brush in the inner core of the reel 16. The dynamic terminal of the brush can rotate synchronously with the reel, and the static terminal of the brush is connected to the working circuit 3 with a wire; the detection signal of the interface sensor probe 12 and the distance measurement signal of the distance measuring device are processed by the working circuit 3, and the working circuit 3 drives the display 4 to display the measurement data and the working status of the device. The working circuit 3 can store the measurement data; the battery 2 provides working power for the working circuit 3, the display 4, the sensor 6 of the distance measuring device, and the probe 12 of the interface sensor; in the device, the reel 16 is limited in its free rotation by the lock 14 when it is stationary.

[0035] When in use, the device is held in hand, and the reel 16 is manually rotated by the crank 15 to release the fishing line 11 and the probe 12 to the measured scene for detection and measurement. After the work is completed, the reel 16 is manually rotated by the crank 15 to retract the fishing line 11 and the probe 12.

[0036] The detection and measurement accuracy of this embodiment can reach the millimeter level. It can detect and measure the depth distance of the liquid surface, the depth distance from the clear liquid surface to the bottom of the liquid, the respective depth distances of two clear and immiscible liquids in the same container, the approximate depth distance from the clear liquid surface to the turbid liquid containing foreign matter precipitation, the direct depth distance vertical to the bottom of various places, etc.

[0037] This embodiment is mainly used in chemical industry, petroleum, light industry, medicine, food, water conservancy engineering, environmental protection and other fields. Example

[0038] See also Figure 2 , Figure 2 This is a schematic cross-sectional view of a manual intelligent measuring device with electric assist functionality according to the present invention. This embodiment differs from Example 1 in that an auxiliary motor 17 is added to the circumference of a reel 16. Auxiliary motor 17 is located on the outer circumference of reel 16, and a gear structure is added thereto to achieve reduced transmission. This embodiment offers the advantage of an electric-assisted mode for releasing and retrieving the fishing line 11 and probe 12, providing increased speed and reduced effort. In the event of power shortage, manual retrieving of the fishing line 11 and probe 12 can also be continued using a crank 15.

[0039] The purpose and application scope of this embodiment are the same as those of embodiment 1. Example

[0040] See also Figure 3 、 Figure 4 , Figure 3 This is a schematic diagram of a working structure of the present invention that uses electromagnetic mutual induction to transmit interface detection signals. Figure 4 yes Figure 3a partially enlarged view; in this embodiment, unlike Example 1, the bracket 13 is of the fixed type at one end, with one end of the shaft 21 fixed to the bracket 13 and the other end suspended, the reel 16 being fixed by a bearing on the shaft, and the crank 15 omitting the rocker and being fixed on the side circumference of the reel 16; the working power of the probe 12 is provided by the auxiliary battery 22 built into the reel 16; the power cord of the inner core of the fishing line 11 is directly connected to the auxiliary battery 22; another difference is the coupling method between the interface sensor detection signal and the working circuit 3: in this embodiment, the signal output wire of the inner core of the fishing line 11 is processed by the modulation circuit 18 provided in the reel 16, and then drives the primary coil 19 that rotates with the reel, and then senses the secondary coil 20 fixed on the shaft through the shaft 21, and the secondary coil 20 is connected to the fixed working circuit; this embodiment adopts electromagnetic mutual induction coupling to realize non-contact signal transmission, which can be directly applied in the structure of Example 1 or Example 2. Example

[0041] See also Figure 5 , Figure 5 This is a schematic diagram of the working structure of the present invention that uses a Hall sensor to transmit an interface detection signal; the difference between this embodiment and embodiment 3 is only the coupling method between the interface sensor detection signal and the working circuit 3: in this embodiment, the signal output wire of the inner core of the fishing line 11 is processed by the modulation circuit 18 provided in the reel 16, and the coil that drives the reel to rotate is an electromagnetic coil 23, and then the magnetic field generated by the shaft 21 drives the Hall sensor 24 fixed on the bracket 13 to work, and then the Hall sensor 24 provides a detection signal to the working circuit, thereby realizing non-contact transmission of the signal. Example

[0042] See also Figure 6 , Figure 6 This is a schematic diagram of the working structure of the present invention using a photoelectric effect to couple the interface sensor signal; the difference between this embodiment and embodiment 2 is still the coupling method between the interface sensor detection signal and the working circuit 3: in this embodiment, the signal output wire of the inner core of the fishing line 11 is processed by the modulation circuit 18 set in the reel 16, and the LED light source 25 fixed on the reel is driven to rotate with the reel. The light signal light is transmitted to the other end of the shaft through a hollow shaft 21, and then received by the photoelectric receiving tube 26 fixed on the bracket 13. The photoelectric receiving tube regenerates the detection signal and provides it to the working circuit, thereby realizing non-contact transmission of the signal. Example

[0043] See also Figure 7 , Figure 7The cross-sectional structure of an electric intelligent measuring device according to the present invention is schematically shown. This embodiment, while removing the crank handle 15 and the lock 14 described in Example 1 from the structure described in Example 3, adds a reduction motor 27 consisting of a worm gear reducer and an electric motor. Another difference from Example 3 lies in the coupling method between the interface sensor detection signal and the working circuit 3: In this embodiment, the signal output wire from the inner core of the fishing line 11 is processed by a modulation circuit 18 within a reel 16, which then drives an electromagnetic signal wireless transmitter to transmit the signal, which is then received by a wireless receiver within the working circuit 3, achieving contactless signal transmission.

[0044] In this embodiment, the self-locking property of the worm gear reducer is utilized to restrict the free rotation of the drum 16 when it is stationary, replacing the lock 14. A reduction motor 27, consisting of a worm gear reducer and an electric motor, is fixed to the bracket 13, and the drum 16 is fixed to the output shaft of the reduction motor 27. The motor speed is determined as needed. During operation, the rotation of the drum 16 is completely controlled by the reduction motor 27. The purpose and application scope of this embodiment are the same as those of Example 1.

[0045] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and is capable of numerous combinations and variations. Any simple modifications, equivalent variations, and modifications based on the technical methods and embodiments of the present invention are considered to fall within the scope of protection of the present invention.

Claims

1. A vertical distance intelligent measurement method, characterized in that: The specific steps include: Step 1: Select an interface sensor as the probe. The length of the fishing line should meet the distance measurement requirements. Then pass the fishing line through a relatively fixed distance measuring device, and the device will measure the distance the fishing line passes. Step 2: Connect the power cord of the interface sensor fishing line core to the adapter power supply; Step 3: Add an interface sensor detection signal receiving interface to the working circuit of the ranging device, which is responsible for receiving the interface sensor detection signal. The signal is uniformly identified and processed by the processor in the working circuit of the ranging device; Step 4: Start the working circuit, and then place the interface sensor probe detection base point and the measurement base point on the same horizontal plane by fishing with a fishing line; Step 5: Initialize the ranging data; Step 6: Release the interface sensor fishing line, causing the interface sensor probe to fall downward, and use the distance measuring device to measure the vertical distance the fishing line passes through. When the fishing line is slack, the release of the fishing line is terminated. Step seven, during the process of releasing the fishing line, the interface sensor probe sends a signal to the distance measuring device when detecting the boundary surface between gas and liquid, the boundary surface between two clear and immiscible liquids in the same container, the approximate boundary surface between a clear liquid and a turbid liquid after contamination and precipitation in the same container, the boundary surface between a clear liquid and a solid, the boundary surface between gas and a solid, or the boundary surface between gas and a semi-fluid. The processor in the working circuit of the distance measuring device records the vertical distance measured by the distance measuring device at the time point corresponding to the signal sent by the interface sensor. The vertical distance is the distance from the measurement base point to the interface. Step 8: Read the measurement data through the display on the distance measuring device to complete the measurement of the required vertical distance.

2. A vertical distance intelligent measuring device, characterized in that: include: An interface sensor, a distance measuring device, a housing (1), a bracket (13), a reel (16), a working circuit (3), a display (4), and a battery (2); a fishing line (11) of the interface sensor passes through the distance measuring device and is wound around the reel (16); the end of the fishing line (11) is fixed to the bottom of the groove of the reel (16); the reel is fixed relative to the housing (1) through the bracket (13); the distance measuring device is fixed to the inner cavity of the housing (1); the working circuit (3) and the battery (2) are fixed to the inner cavity of the housing (1) or are fixed in a dispersed manner in the inner cavity of the housing and the core space of the reel (16); the display is fixed to the housing (1) and exposed; the distance measuring device refers to a device that detects the length of the fishing line passing through the interface sensor through a distance measuring wheel, and is composed of a distance measuring wheel (8), a code disk (9), a sensor (6), a guide wheel (7) and a counting operation circuit thereof; the interface sensor includes a fishing line (11) and a probe (12).

3. The vertical distance intelligent measuring device according to claim 2, characterized in that: The working circuit refers to the general term for the working circuit of the measuring device, including the interface sensor driving circuit, the interface sensor signal modulation circuit and receiving circuit, the code disk counting circuit, the data calculation circuit, the display driving circuit, and also includes the data storage circuit, the electric reel driving and control circuit, the device working status indication circuit, etc.

4. The vertical distance intelligent measurement device according to claim 2, characterized in that: The interface sensor is a photoelectric interface sensor used to detect the boundary interface between gas and liquid, the boundary interface between gas and solid, the boundary interface between two clear and immiscible liquids, the approximate boundary interface between the same clear liquid and a turbid liquid after contamination and precipitation, and the boundary interface between clear liquid and solid.

5. The vertical distance intelligent measuring device according to claim 4, characterized in that: The inner core of the fishing line (11) of the interface sensor comprises a power line and a signal transmission line.

6. The vertical distance intelligent measuring device according to claim 4, characterized in that: The detection signal output by the signal transmission line of the inner core of the interface sensor fishing line and the working circuit are coupled by brushes, or non-contact mutual inductance coupling using two coils, or non-contact coupling using Hall sensors, or non-contact coupling using light transmission, or wireless coupling of electromagnetic signal transmission and electromagnetic signal reception, or near field communication coupling using NFC technology; the coupling refers to the transmission method of the interface sensor detection signal and the working circuit (3).

7. The vertical distance intelligent measuring device according to claim 2, characterized in that: The housing (1) has a handheld or portable handle structure, or a handheld or portable handle is additionally fixed on the housing (1).

8. The vertical distance intelligent measuring device according to claim 2, characterized in that: The code disk (9) used in the distance measuring device is of incremental type, and the increment refers to the amount of change in angle or displacement determined by counting the pulse signal generated by the rotation of the code disk.

9. The vertical distance intelligent measuring device according to claim 2, characterized in that: The reel (16) is in the shape of an "I" or an "H", and includes a hand-cranked reel, a spring reel, and an electric reel.

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