CN113899435A - Metering system for water-stable mixing materials - Google Patents
Metering system for water-stable mixing materials Download PDFInfo
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- CN113899435A CN113899435A CN202111165080.2A CN202111165080A CN113899435A CN 113899435 A CN113899435 A CN 113899435A CN 202111165080 A CN202111165080 A CN 202111165080A CN 113899435 A CN113899435 A CN 113899435A
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- 239000002994 raw material Substances 0.000 claims abstract description 33
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- 238000006243 chemical reaction Methods 0.000 abstract description 4
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- 238000010521 absorption reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/22—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them
- G01G19/34—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them with electrical control means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
Abstract
The utility model discloses a metering system for water-stable mixing materials, which comprises a support frame and a raw material bin, wherein the top layer of the support frame is provided with the raw material bin; the measuring bin is connected with the supporting frame through a weight sensor, pedals are arranged on the periphery of the measuring bin, and guardrails are arranged on the pedals; through setting up the measurement storehouse, measure continuous type workplace to through opening of cooperation control feed door and unloading door, through weight sensor signal acquisition, through the operation of filtering, signal amplification, AD conversion, reacing material weight or flow, increase the accuracy nature of measurement.
Description
Technical Field
The utility model belongs to the field of building material mixing, and particularly relates to a metering system for water-stable mixed materials.
Background
The traditional material mixing mode mainly comprises volumetric metering and weighing metering, wherein the volumetric metering billows measure the weight of powder of a measured material by taking the volume of the powder in unit time as a reference, and the volumetric metering has poor measurement accuracy on a continuous working occasion; the weighing type metering adopts three modes of a belt scale, a spiral scale and a decrement scale which are commonly used. However, in the actual production process, when the weight reduction scale is used for weighing, the powder tank is large in size, high in installation height, difficult to improve the bearing speed and difficult to ensure the metering accuracy, so that the metering error is large.
Chinese patent application No. 201320836141.8 discloses a powder material metering system, including: the rotary valve is positioned on a material conveying pipeline below the storage bin, and the rotary valve is connected with a motor, a magnetoelectric sensor and a PLC (programmable logic controller) which are connected with a bearing end of the rotary valve; the rotary valve is a vane type rotary valve, and an iron block is arranged on a bearing of the rotary valve; the input end of the magnetoelectric sensor is right opposite to the iron block, and the output end of the magnetoelectric sensor is connected with the input end of the PLC. The utility model has the following beneficial effects: the magneto-electric sensor and the PLC are arranged at the rotary valve end of the powder material conveying pipeline, the amount of the conveyed powder material in unit time can be automatically measured in real time, and in the process of spiral weighing, the metering precision is difficult to grasp, and the metering error is large.
Chinese patent application No. 201020692808.8 discloses a material metering system. The material metering system comprises a storage hopper, a weight measurer and a weighing hopper, and is characterized in that a blanking port at the lower part of the storage hopper is communicated with two discharging barrels, wherein the calibers of the two discharging barrels are different, a large-flow valve is arranged on the discharging barrel with the large caliber, a small-flow valve is arranged on the discharging barrel with the small caliber, the outlets of the two discharging barrels are opposite to the weighing hopper, the weighing hopper is fixed on the weight measurer, the weight measurer is connected with a data arithmetic processor, and the data arithmetic processor is respectively connected with the large-flow valve and the small-flow valve. When the technical scheme is used, the method is not well applicable to continuous type working field combination, so that the application range is limited and needs to be improved.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a metering system for water-stable mixing materials, which is characterized in that a metering bin is arranged to meter a continuous working occasion, the opening of a feeding door and a discharging door is controlled in a matching manner, the weight or the flow of the materials is obtained through the signal acquisition of a weight sensor and the operations of filtering, signal amplification and AD conversion, and the metering accuracy is improved.
The utility model provides the following technical scheme:
a metering system for water-stable mixing materials comprises a support frame and a raw material bin, wherein the raw material bin is arranged on the top layer of the support frame, a pedal is arranged around the raw material bin, guardrails are arranged around the pedal, a metering bin is correspondingly arranged below the raw material bin, the upper edge of the metering bin is provided with a plurality of weight sensors, and the weight sensors are uniformly distributed on the periphery of the metering bin; the measuring bin is connected with the supporting frame through a weight sensor, pedals are arranged on the periphery of the measuring bin, and guardrails are arranged on the pedals;
the side wall of the raw material bin is provided with a first telescopic rod, the god end of the first telescopic rod is connected with a feeding door, the feeding door is arranged at the bottom of the raw material bin and is rotationally connected with the raw material bin, and the first telescopic rod controls the opening and closing of the feeding door through a motor; the lateral wall of measurement storehouse is equipped with the second telescopic link, the flexible end of second telescopic link is connected with the unloading door, the unloading door is established in the bottom of measurement storehouse, and rotates with the measurement storehouse to be connected, and the second telescopic link passes through the closure of motor control unloading door and opens.
Preferably, the device also comprises a control module, wherein the control module comprises a data acquisition module, a data acquisition card and an MCU; the industrial personal computer acquires signals from the data acquisition card through the CAN driver, and the data acquisition module and the data acquisition card are transmitted through wireless signals.
Preferably, the data acquisition module comprises a plurality of sensors, the sensors are weight sensors, and the weight sensors transmit signals with the data acquisition card through the wireless WiFi module.
Preferably, the weight sensors are in chain communication with the data acquisition card through the wireless WiFi modules, the WiFi transceiving converters arranged inside the MCU send networking signals, the wireless WiFi modules of all the weight sensors receive the networking signals, the strength of the networking signals is compared, the wireless WiFi modules of the weight sensors receiving the networking signals with the maximum strength are used for receiving the signals, the wireless WiFi transceiving converters are in communication connection, the wireless WiFi modules of the weight sensors receiving the networking signals detect and receive the signal strengths of other weight sensor nodes, and then the wireless WiFi modules are connected with the signal strength to the maximum degree, all the wireless WiFi modules of the weight sensors are sequentially connected in the mode, and chain networking communication is completed.
Preferably, the control module comprises a feeding metering module, a discharging metering module and a manual module.
Preferably, the MCU includes a clock timer, and the clock timer receives the GPS signal, extracts timing information therein, and adjusts local time of the control module.
Preferably, the data acquisition card comprises an FPGA module, and the FPGA module acquires the multichannel weight signals and extracts the characteristic parameters in the multichannel weight signals.
Preferably, a metering system for water-stable mixing materials employs a metering method comprising the steps of:
s1, the control module sends out a control signal, the feeding door of the raw material bin is opened through the first telescopic rod, and the material enters the metering bin;
s2, when the material in the measuring bin reaches a certain amount, closing the feeding door to stop feeding the material, and transmitting the total weight of the measuring bin and the material in the measuring bin weighed by the weighing sensor to the MCU control board through the signal acquisition card;
s3, the discharge door is opened through the control of the second telescopic rod, the materials are continuously discharged from the metering bin, and when the materials are continuously discharged, the weight sensors weigh the weight of the residual materials in the granary and the metering bin in real time, so that the discharged materials are the difference value between the total weight of the initial metering bin and the total weight of the current metering bin, and the accuracy of measurement is further improved due to the fact that the weight sensors are adopted and the influence of the impact force of the materials is not received.
Preferably, in order to increase the metering accuracy and reduce the influence on metering during the falling process of the materials, the total mass of the metering bin at the initial moment is m1, and the total mass of the metering bin after the metering bin discharges for a period of time t becomes m2 due to discharging, so that the flow rate q of the materials discharged by the metering bin satisfies q = (m 1-m 2)/t, t units s, m1, m2 units kg, and q units kg/s within the interval time t.
Preferably, in order to enable the materials to fall from the metering bin uniformly, the blanking door of the metering bin is set to be circular, so that the materials in the metering bin fall at a constant speed, the phenomenon that the materials fall unevenly due to the friction force of the wall of the metering bin in the falling process, the initial speeds v of the materials are different, the signals collected by the weight sensor are unstable, and the metering accuracy is influenced is avoided, the diameter of the blanking door is D, the falling initial speed v of the materials meets the requirement between the flow rates q of the materials discharged by the metering bin, and v = phi (m 1-m 2)/g D t; in the above formula, the unit D is cm, and v is cm/s; phi is a relation adjusting coefficient, the value range is 0.366-6.89, and g is a gravity acceleration constant.
In the process of metering and weighing, the control module absorbs and initializes, AD sampling is carried out on a metering bin through a weight sensor, weight display is carried out through an LCD (liquid crystal display) connected with an MCU (micro control unit) after Kalman filtering processing is carried out, the working mode of the system is selected through keyboard input connected with the MCU, if the feeding metering mode is selected, the feeding amount is given through a keyboard, the feeding metering mode is started and timing is started, the weight value of materials in the metering bin is accurately calculated according to the advance before the system is shut down, the weight value is compared with the weight value of data acquired from a data acquisition card after Kalman filtering processing, when the two numbers are equal, a feeding door is closed through a first telescopic rod, and feeding is stopped. When a blanking metering mode is selected, AD sampling is carried out through a weight sensor and is transmitted to an MCU through a data acquisition card, then Kalman filtering processing is carried out, processed data are subjected to memorial flow calculation, and then the filtered weighing value and flow data are displayed on an LCD screen. If the manual mode is selected, AD sampling is carried out through the weight sensor, the AD sampling is transmitted to the MCU through the data acquisition card, then Kalman filtering processing is carried out, and then the filtered weighing value is displayed on the LCD screen.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the utility model relates to a metering system for water-stable mixing materials, which is characterized in that a metering bin is arranged to meter a continuous working occasion, the opening of a feeding door and a discharging door is controlled in a matching manner, the weight or the flow of the materials is obtained through the operations of signal acquisition of a weight sensor, filtering, signal amplification and AD conversion, and the metering accuracy is improved.
(2) The utility model relates to a metering system for water-stable mixing materials, wherein the materials are continuously discharged from a metering bin, and a weight sensor is used for weighing the weight of the remaining materials in a granary and the metering bin in real time while the materials are continuously discharged, so that the discharged materials are the difference value between the total weight of an initial metering bin and the total weight of the current metering bin, and the accuracy of measurement is further improved because the weight sensor is adopted without the influence of impact force of the materials.
(3) According to the metering system for the water-stable mixture, due to the adoption of WiFi chain communication, the detection equipment is convenient to install, the quality monitoring range is expanded, and the condition of signal loss is prevented.
(4) According to the metering system for the water-stable mixture, the clock is adopted for time service, the time of each node is unified through the WiFi link, the subsequent time processing is facilitated, and the accuracy of time control is improved.
(5) The utility model relates to a metering system for water-stable mixing materials, which enables the materials to fall uniformly from a metering bin through limiting the diameter of a discharge door and the relation between the flow rates of the materials discharged by an initial speed metering bin of the materials, so that the materials in the metering bin fall at a constant speed, and prevents the problems that the falling of the materials is not uniform due to the friction force of the wall of the metering bin in the falling process of the materials, the signals collected by a weight sensor generate unstable changes, and the metering accuracy is influenced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a front view of the present invention.
FIG. 4 is a flow diagram of a metering system of the present invention.
FIG. 5 is a block diagram of a feed metering mode of the present invention.
Fig. 6 is a feed metering pattern block diagram of the present invention.
In the figure: 1. a support frame; 2. a raw material bin; 3. a metering bin; 4. a control module; 5. a guardrail; 6. a pedal; 7. a first telescopic rod; 8. a supply door; 9. a sensor; 10. a second telescopic rod; 11. a discharge door.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings. It is to be understood that the described embodiments are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1-3, a metering system for water-stable mixing materials comprises a support frame 1 and a raw material bin 2, wherein the raw material bin 2 is arranged on the top layer of the support frame 1, a pedal 6 is arranged around the raw material bin 2, guardrails 5 are arranged around the pedal 6, a metering bin 3 is correspondingly arranged below the raw material bin 2, a plurality of weight sensors are arranged on the upper edge of the metering bin 3, and the weight sensors are uniformly distributed on the peripheral side of the metering bin 3; the measuring bin 3 is connected with the support frame 1 through a weight sensor, a pedal 6 is arranged on the periphery of the measuring bin 3, and a guardrail 5 is arranged on the pedal 6;
the side wall of the raw material bin 2 is provided with a first telescopic rod 7, the telescopic end of the first telescopic rod 7 is connected with a feeding door 8, the feeding door 8 is arranged at the bottom of the raw material bin 2, the feeding door 8 is rotatably connected with the raw material bin 2, and the first telescopic rod 7 controls the opening and closing of the feeding door 8 through a motor; the lateral wall of measurement storehouse 3 is equipped with second telescopic link 10, the flexible end of second telescopic link 10 is connected with blanking door 11, blanking door 11 is established in the bottom of measurement storehouse 3, and rotates with measurement storehouse 3 to be connected, and second telescopic link 10 passes through the closure of motor control blanking door 11 and opens.
Example two:
as shown in fig. 4-6, on the basis of the first embodiment, the apparatus further includes a control module 4, where the control module 4 includes a data acquisition module, a data acquisition card, and an MCU; the industrial personal computer acquires signals from the data acquisition card through the CAN driver, and the data acquisition module and the data acquisition card are transmitted through wireless signals.
The data acquisition module comprises a plurality of sensors 9, the sensors 9 are weight sensors, and the weight sensors transmit signals with the data acquisition card through the wireless WiFi module.
Carry out chain communication between weight sensor passes through wireless wiFi module and data acquisition card, the wiFi receiving and dispatching converter of the inside setting of MCU sends the signal of network deployment, all weight sensor's wireless wiFi module receives the network deployment signal, and compare the intensity size of network deployment signal, receive by the wireless wiFi module of the biggest weight sensor who receives this network deployment signal intensity, with carry out communication connection between the wiFi receiving and dispatching converter, later accept the wireless wiFi module of the weight sensor of network deployment signal and detect and receive the signal intensity of other weight sensor nodes, then be connected with the emergence that signal intensity is the biggest, connect all weight sensor's wireless wiFi module in proper order with this kind of mode, accomplish chain network deployment communication.
The control module 4 comprises a feeding metering module, a discharging metering module and a manual module.
The MCU is provided with a clock timer, and the clock timer receives the GPS signal, extracts timing information in the GPS signal and is used for adjusting the local time of the control module 4.
The data acquisition card comprises an FPGA module, and the FPGA module acquires multi-channel weight signals and extracts characteristic parameters in the multi-channel weight signals.
Example three:
on the basis of the first embodiment, a metering system for water-stable mixing materials adopts a metering method, which comprises the following steps:
s1, the control module 4 sends out a control signal, the feeding door 8 of the raw material bin 2 is opened through the first telescopic rod 7, and the material enters the metering bin 3;
s2, when the material in the measuring bin 3 reaches a certain amount, the feeding door 8 is closed to stop feeding the material, and at the moment, the weighing sensor 9 weighs the measuring bin 3 and the total weight in the measuring bin 3 is transmitted to the MCU control board through the signal acquisition card;
s3, the discharge door 11 is opened through the control of the second telescopic rod 10, the materials are continuously discharged from the metering bin 3, and when the materials are continuously discharged, the weight sensors weigh the weight of the residual materials in the granary and the metering bin 3 in real time, so that the discharged materials are the difference value between the total weight of the initial metering bin 3 and the total weight of the metering bin 3 at present, and the accuracy of measurement is further improved due to the fact that the weight sensors are adopted and the influence of the impact force of the materials is not received.
In order to increase the metering accuracy and reduce the influence on metering in the falling process of materials, the total mass of the metering bin 3 at the initial moment is m1, the total mass of the metering bin 3 after the metering bin 3 discharges for a period of time t becomes m2 due to discharging, and the flow rate q of the materials discharged by the metering bin 3 meets the requirements of q = m1-m2/t, t units s, m1, m2 units kg and q units kg/s within the interval time t.
In order to enable the materials to uniformly fall from the metering bin 3, the blanking door 11 of the metering bin 3 is set to be circular, so that the materials in the metering bin 3 fall at a constant speed, the phenomenon that the falling of the materials is not uniform due to the action of friction force of the wall of the metering bin 3 in the falling process is avoided, the initial falling speeds v of the materials are different, signals collected by a weight sensor are unstable, and the metering accuracy is influenced, wherein the diameter of the blanking door 11 is D, the initial falling speed v of the materials is satisfied between the flow rates q of the materials discharged by the metering bin 3, and v = phi · m1-m 2/g D t; in the above formula, the unit D is cm, and v is cm/s; phi is a relation adjusting coefficient, the value range is 0.366-6.89, and g is a gravity acceleration constant.
Example four
A metering system for water-stable mixing materials comprises a support frame 1 and a raw material bin 2, wherein the raw material bin 2 is arranged on the top layer of the support frame 1, a pedal 6 is arranged around the raw material bin 2, guardrails 5 are arranged around the pedal 6, a metering bin 3 is correspondingly arranged below the raw material bin 2, a plurality of weight sensors are arranged on the upper edge of the metering bin 3, and the weight sensors are uniformly distributed on the periphery of the metering bin 3; the measuring bin 3 is connected with the support frame 1 through a weight sensor, a pedal 6 is arranged on the periphery of the measuring bin 3, and a guardrail 5 is arranged on the pedal 6;
the side wall of the raw material bin 2 is provided with a first telescopic rod 7, the telescopic end of the first telescopic rod 7 is connected with a feeding door 8, the feeding door 8 is arranged at the bottom of the raw material bin 2, the feeding door 8 is rotatably connected with the raw material bin 2, and the first telescopic rod 7 controls the opening and closing of the feeding door 8 through a motor; the lateral wall of measurement storehouse 3 is equipped with second telescopic link 10, the flexible end of second telescopic link 10 is connected with blanking door 11, blanking door 11 is established in the bottom of measurement storehouse 3, and rotates with measurement storehouse 3 to be connected, and second telescopic link 10 passes through the closure of motor control blanking door 11 and opens.
In the process of metering and weighing, the control module 4 is used for initialization after absorption, AD sampling is carried out on the metering bin 3 through a weight sensor, weight display is carried out through an LCD (liquid crystal display) connected with an MCU (micro control unit) after Kalman filtering processing is carried out, the working mode of the system is selected through keyboard input connected with the MCU, if the feeding metering mode is selected, the feeding amount is given through a keyboard, the feeding metering mode is started and timing is started, the weight value of materials in the metering bin 3 is accurately calculated according to the advance before the system is shut down, the weight value is compared with the weight value of data acquired from a data acquisition card after Kalman filtering processing, when the two numbers are equal, the feeding door 8 is closed through the first telescopic rod 7 to stop feeding. When a blanking metering mode is selected, AD sampling is carried out through a weight sensor and is transmitted to an MCU through a data acquisition card, then Kalman filtering processing is carried out, processed data are subjected to memorial flow calculation, and then the filtered weighing value and flow data are displayed on an LCD screen. If the manual mode is selected, AD sampling is carried out through the weight sensor, the AD sampling is transmitted to the MCU through the data acquisition card, then Kalman filtering processing is carried out, and then the filtered weighing value is displayed on the LCD screen.
The device that obtains through above-mentioned technical scheme is a measurement system that is used for water to mix the material steadily, through setting up the measurement storehouse, measures continuous type workplace to through opening of cooperation control feed door and unloading door, through weighing transducer signal acquisition, through filtering, signal amplification, AD conversion's operation, reachs material weight or flow, increase the accuracy nature of measurement. The material is discharged from the measuring bin continuously, and when the material is discharged continuously, the weight sensor weighs the weight of the residual material in the granary and the measuring bin in real time, so that the discharged material is the difference value between the total weight of the initial measuring bin and the total weight of the current measuring bin, and the measuring accuracy is further improved due to the fact that the weight sensor is adopted and the influence of the impact force of the material is not received. Through adopting wiFi chain communication, be convenient for install check out test set to enlarged the quality monitoring scope, prevented the condition that the signal lost. The clock is used for time service, the time of each node is unified through the WiFi link, subsequent time processing is facilitated, and the accuracy of time control is improved. Through injecing the diameter of unloading door, the initial velocity of material measures the relation between the flow that the storehouse discharged the material, makes the material from the even whereabouts in the measurement storehouse, makes the material in measurement storehouse fall at the uniform velocity, prevents that the material from leading to the material to fall inhomogeneously owing to receive the effect of measurement storehouse wall friction in the in-process that falls down, and the signal that causes weighing transducer to gather produces unstable variation, influences the accuracy of measurement.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A metering system for water-stable mixing materials comprises a support frame (1) and a raw material bin (2); the device is characterized in that a raw material bin (2) is arranged on the top layer of the support frame (1), a pedal (6) is arranged around the raw material bin (2), guardrails (5) are arranged around the pedal (6), a metering bin (3) is correspondingly arranged below the raw material bin (2), a plurality of weight sensors are arranged on the upper edge of the metering bin (3), and the weight sensors are uniformly distributed on the peripheral side of the metering bin (3); the measuring bin (3) is connected with the support frame (1) through a weight sensor, pedals (6) are arranged on the periphery of the measuring bin (3), and guardrails (5) are arranged on the pedals (6);
the side wall of the raw material bin (2) is provided with a first telescopic rod (7), the god end of the first telescopic rod (7) is connected with a feeding door (8), the feeding door (8) is arranged at the bottom of the raw material bin (2), the feeding door (8) is rotatably connected with the raw material bin (2), and the first telescopic rod (7) controls the feeding door (8) to be opened and closed through a motor; the lateral wall of measurement storehouse (3) is equipped with second telescopic link (10), the flexible end of second telescopic link (10) is connected with down bin gate (11), the bottom at measurement storehouse (3) is established in down bin gate (11), and rotates with measurement storehouse (3) and be connected, and second telescopic link (10) are through the closure and the opening of motor control down bin gate (11).
2. A metering system for water-stable mixtures according to claim 1, characterized in that it also comprises a control module (4), said control module (4) comprising a data acquisition module, a data acquisition card, an MCU; the industrial personal computer acquires signals from the data acquisition card through the CAN driver, and the data acquisition module and the data acquisition card are transmitted through wireless signals.
3. A metering system for water-stable mixing materials, according to claim 1, characterized in that said data acquisition module comprises a plurality of sensors (9), the sensors (9) being weight sensors, said weight sensors being in signal communication with a data acquisition card via a wireless WiFi module.
4. The system of claim 3, wherein the weight sensors are in chain communication with the data acquisition card via WiFi modules, the WiFi transceiver converter disposed inside the MCU sends networking signals, the WiFi modules of all the weight sensors receive the networking signals, and compare the strength of the networking signals, and the WiFi module of the weight sensor receiving the networking signals with the highest strength is used for receiving the networking signals and performing communication connection with the WiFi transceiver converter, and then the WiFi modules of the weight sensors receiving the networking signals detect and receive the signal strength of other weight sensor nodes, and connect with the weight sensor nodes with the highest signal strength.
5. A metering system for water-stable mixing materials according to claim 2, characterised in that said control module comprises a feeding metering module, a discharging metering module, a manual module.
6. A metering system for water-stable mixtures and materials as claimed in claim 4 wherein said MCU includes a clock timer, said clock timer receiving GPS signals and extracting timing information therefrom for adjusting the local time of the control module.
7. The system for metering water-stable mixture according to claim 3, wherein said data acquisition card comprises an FPGA module, said FPGA module acquiring multi-channel weight signals and extracting characteristic parameters from the multi-channel weight signals.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2581955Y (en) * | 2002-12-10 | 2003-10-22 | 方圆集团有限公司 | Weighing meter for continuously reducing powder material |
| CN102175294A (en) * | 2011-01-20 | 2011-09-07 | 三一重工股份有限公司 | Material metering control method and material metering control device |
| CN102853885A (en) * | 2012-10-17 | 2013-01-02 | 徐工集团工程机械股份有限公司 | Material metering device |
| CN108195941A (en) * | 2017-12-29 | 2018-06-22 | 郑州智谷工业技术有限公司 | A kind of rock fracture sound emission on-line monitoring system |
-
2021
- 2021-09-30 CN CN202111165080.2A patent/CN113899435A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2581955Y (en) * | 2002-12-10 | 2003-10-22 | 方圆集团有限公司 | Weighing meter for continuously reducing powder material |
| CN102175294A (en) * | 2011-01-20 | 2011-09-07 | 三一重工股份有限公司 | Material metering control method and material metering control device |
| CN102853885A (en) * | 2012-10-17 | 2013-01-02 | 徐工集团工程机械股份有限公司 | Material metering device |
| CN108195941A (en) * | 2017-12-29 | 2018-06-22 | 郑州智谷工业技术有限公司 | A kind of rock fracture sound emission on-line monitoring system |
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