CN204787760U - Moisture content of wood detects and controlling means - Google Patents
Moisture content of wood detects and controlling means Download PDFInfo
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- CN204787760U CN204787760U CN201520407697.4U CN201520407697U CN204787760U CN 204787760 U CN204787760 U CN 204787760U CN 201520407697 U CN201520407697 U CN 201520407697U CN 204787760 U CN204787760 U CN 204787760U
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Abstract
The utility model discloses a moisture content of wood detects and controlling means, including sensor group, measuring circuit, analog to digital conversion circuit, singlechip main control chip, temperature heater, humidity generator, circulating fan, exhaust fan and remote server, sensor group includes a plurality of moisture content sensors, a plurality of temperature sensor and a plurality of humidity transducer, the measuring circuit is connected with sensor group, analog to digital conversion circuit and measurement circuit connection, singlechip main control chip is connected with analog to digital conversion circuit, temperature heater, humidity generator, circulating fan and exhaust fan respectively, remote server carries out data communication through wireless communication and singlechip main control chip. The utility model discloses can be at the real -time on -line measuring moisture content of wood of wood drying in -process, according to the moisture content of wood value analytical judgement to detecting, control the temperature and humidity value of dry media in the dry kiln again, realize the control to moisture content of wood for the wood drying quality reaches the processing requirement.
Description
Technical field:
The utility model belongs to timber preparing technical field, specifically relates to a kind of moisture content Detection & Controling device.
Background technology:
At present, timber is in manufacturing process, and drying is a very important operation, and its drying effect directly can have influence on the quality of timber.The drying means of existing timber has two classes: a class is air drying, air drying is the principal mode of natural drying, timber is placed in lumber yard or booth exactly and makes the drying of wood with blower fan air blast, these class methods do not need too many drying equipment, cost is low, but floor space is large, drying time is long; Another kind of is artificial drying, namely adopts certain drying equipment to carry out drying to timber, controls dry run artificially, can control degree of drying and shorten arid cycle.
Artificial drying process refers to and adopts suitable control technology to make the moisture of timber in dry kiln with the process of evaporating or boiling mode is discharged to dry kiln temperature and humidity under the effect of heat energy.The existing moisture content Detection & Controling device for timber drying can not detect moisture content by real-time online, in dry kiln, the humiture of medium does not meet Wood drying technique, cannot realize the control to moisture content in timber drying, wood drying quality does not reach processing request.
Utility model content:
For this reason, technical problem to be solved in the utility model is can not realize on-line checkingi moisture content for moisture content Detection & Controling device in prior art, the control to moisture content in timber drying cannot be realized, wood drying quality does not reach processing request, thus proposes a kind of moisture content Detection & Controling device.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of moisture content Detection & Controling device, comprising:
Sensor group, measuring circuit, analog to digital conversion circuit, single-chip microcomputer main control chip, temperature heater, humidity generator, circulating fan, air exhauster and remote server;
Described sensor group comprises multiple moisture sensor, multiple temperature sensor and multiple humidity sensor;
Described measuring circuit is connected with described sensor group, for carrying out signal amplification, filtering and noise reduction and amplitude limiting processing to the described sensor group output signal received;
Analog-digital conversion circuit as described is connected with described measuring circuit, for carrying out analog-to-digital conversion to described measuring circuit output signal;
Described single-chip microcomputer main control chip is connected with analog-digital conversion circuit as described, described temperature heater, described humidity generator, described circulating fan and described air exhauster respectively;
Described remote server carries out data communication by communication and described single-chip microcomputer main control chip.
Preferred as technique scheme, described measuring circuit comprises operational amplification circuit, filter circuit, amplitude limiter circuit and programmable gain circuit.
Preferred as technique scheme, is connected with the first photoelectric isolating circuit, the first relay in turn between described single-chip microcomputer main control chip and described humidity generator; The first photoelectric isolating circuit, the second relay is connected with in turn between described single-chip microcomputer main control chip and described temperature heater.
Preferred as technique scheme, is connected with the second photoelectric isolating circuit, the 3rd relay in turn between described single-chip microcomputer main control chip and described circulating fan; The second photoelectric isolating circuit, the 4th relay is connected with in turn between described single-chip microcomputer main control chip and described air exhauster.
Preferred as technique scheme, described moisture sensor is needle-like steel nail probe.
Preferred as technique scheme, described temperature sensor is Pt100 platinum resistance temperature sensor.
Preferred as technique scheme, described humidity sensor is wet-bulb thermometer.
Preferred as technique scheme, also comprise: indicator lamp and button, described indicator lamp and described button are connected with described single-chip microcomputer main control chip respectively, and described indicator lamp is for showing timber drying state, and described button is used for the setting of machined parameters in timber drying.
The beneficial effects of the utility model are: the utility model can detect moisture content by real-time online in timber drying, judge according to the moisture content value analysis detected, control temperature and the humidity value of drying kiln for drying medium again, realize the control to moisture content, make wood drying quality reach processing request.
Accompanying drawing illustrates:
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is a kind of moisture content Detection & Controling device block diagram of the utility model embodiment;
Fig. 2 is a kind of measuring circuit block diagram of the utility model embodiment;
Fig. 3 is a kind of single-chip microcomputer main control chip and the remote server data Principle of Communication block diagram of the utility model embodiment.
Detailed description of the invention:
As shown in Figure 1, moisture content Detection & Controling device of the present utility model, comprising:
Sensor group, measuring circuit, analog to digital conversion circuit, single-chip microcomputer main control chip, temperature heater, humidity generator, circulating fan, air exhauster and remote server.
Described sensor group comprises multiple moisture sensor, multiple temperature sensor and multiple humidity sensor.Described moisture sensor is needle-like steel nail probe, needle-like steel nail probe is hammered into timber diverse location and utilizes between each probe that resistivity is to carry out the detection of moisture content by described moisture sensor in use, and between the moisture content of timber and probe, resistivity has relation.Described temperature sensor is Pt100 platinum resistance temperature sensor, and described temperature sensor is for detecting the temperature in dry kiln.Described humidity sensor is wet-bulb thermometer, and described humidity sensor is for measuring the humidity in described dry kiln.In the present embodiment, described moisture sensor, described temperature sensor, described humidity sensor are chosen 8 respectively and are formed described sensor groups, and described moisture sensor, described temperature sensor, described humidity sensor to be evenly distributed in dry kiln everywhere.
Described measuring circuit is connected with described sensor group, for carrying out signal amplification, filtering and noise reduction and amplitude limiting processing to the described sensor group output signal received.As shown in Figure 2, described measuring circuit comprises operational amplification circuit, filter circuit, amplitude limiter circuit and programmable gain circuit, the primary signal exported due to sensor is all fainter, so operational amplification circuit must be adopted sensor raw signals to be carried out amplification process; Due to different time sections in process, the output amplitude of sensor varies in size, so the multiplication factor that different time sections requires is different, makes described operational amplification circuit have gain controllable function so arrange programmable gain circuit on operational amplification circuit; Sensor output signal also usually with noise, so need adopt filter circuit carry out noise processed; For preventing impulse disturbances or the large voltage of transient state unstable state on the impact of analog to digital conversion circuit, adopting amplitude limiter circuit that the signal of telecommunication is clamped to the range of nominal tension, re-sending to analog to digital conversion circuit by the sensor signal of measuring circuit process.
Analog-digital conversion circuit as described is connected with described measuring circuit, and for carrying out analog-to-digital conversion to described measuring circuit output signal, analog-digital conversion circuit as described converts the analog signal of sensor to data signal, so that single-chip microcomputer main control chip can receive process.
Described single-chip microcomputer main control chip is connected with analog-digital conversion circuit as described, described temperature heater, described humidity generator, described circulating fan and described air exhauster respectively.In the present embodiment, described single-chip microcomputer main control chip adopts Freescale MC56F8013 single-chip microcomputer, after described single-chip microcomputer main control chip obtains the sensor signal of sensor group output by analog to digital conversion circuit, namely the parameter detecting to the temperature in current moisture content value and dry kiln and humidity value is completed, described single-chip microcomputer main control chip is by more current moisture content value and processing technology requirements, export control signal and control described temperature heater, described humidity generator, described circulating fan and described air exhauster start and stop, current warm and humid angle value is made to reach drying process requirement.
Be connected with the first photoelectric isolating circuit, the first relay between described single-chip microcomputer main control chip and described humidity generator in turn, described single-chip microcomputer main control chip realizes the start and stop of described humidity generator by controlling described first actuating of relay.Be connected with the first photoelectric isolating circuit, the second relay between described single-chip microcomputer main control chip and described temperature heater in turn, described single-chip microcomputer main control chip realizes the start and stop of described humidity generator by controlling described second actuating of relay.The control signal of described first relay and described second relay is sent by the first photoelectric isolating circuit by described single-chip microcomputer main control chip, the effect of described first photoelectric isolating circuit is the isolation between realization electrically, and the dry influence of noise avoiding described first relay and described second relay to produce in course of action is to the operation of described single-chip microcomputer main control chip.
Be connected with the second photoelectric isolating circuit, the 3rd relay between described single-chip microcomputer main control chip and described circulating fan in turn, described single-chip microcomputer main control chip realizes the start and stop of described circulating fan by controlling described 3rd actuating of relay; Be connected with the second photoelectric isolating circuit, the 4th relay between described single-chip microcomputer main control chip and described air exhauster in turn, described single-chip microcomputer main control chip realizes the start and stop of described air exhauster by controlling described 4th actuating of relay.The control signal of described 3rd relay and described 4th relay is sent by the second photoelectric isolating circuit by described single-chip microcomputer main control chip, the effect of described second photoelectric isolating circuit is the isolation between realization electrically, and the dry influence of noise avoiding described 3rd relay and described 4th relay to produce in course of action is to the operation of described single-chip microcomputer main control chip.
Described remote server carries out data communication by communication and described single-chip microcomputer main control chip.Some machining state information in timber drying upload to remote server by wireless network, and described machining state information comprises moisture content value, temperature value in dry kiln, dry kiln humidity value, process time etc.; Remote server also can send control command to described single-chip microcomputer main control chip, makes described single-chip microcomputer main control chip control executing agency's actions such as described temperature heater according to described control command.As shown in Figure 3, the present embodiment remote server and single-chip microcomputer main control chip data communication mode be in the following way: described machining state information is sent to serial ports by RS232 serial ports and turns ethernet module by described single-chip microcomputer main control chip, described serial ports turns ethernet module and adopts ZNE series biography to turn ethernet module, described machining state information turns after ethernet module carries out data format process by described serial ports, the second wireless router is uploaded to through wireless network by the first wireless router, described second wireless router again by described machining state information transmission to remote server, described remote server comprises database server and Web server, client PC is by the data acquisition machining state information in reading Web service device or database server.Control command is sent to described first wireless router by described second wireless router through wireless network by client PC by remote server simultaneously, data are inputed to serial ports and turn ethernet module by described first wireless router again, single-chip microcomputer turns ethernet module by RS232 serial ports reading serial ports and obtains control command, to complete the control to timber process.
Also comprise indicator lamp and button, described indicator lamp and described button are connected with described single-chip microcomputer main control chip respectively, and described indicator lamp is for showing timber drying state, and described button is used for the setting of machined parameters in timber drying.
Operation principle:
The sensor signal of acquisition is sent to measuring circuit by sensor group; Described measuring circuit is sent to analog to digital conversion circuit after the sensor signal of reception is carried out signal amplification, filtering process and amplitude limiting processing; The sensor signal of reception is carried out analog-to-digital conversion and is sent in single-chip microcomputer main control chip by analog-digital conversion circuit as described.
After described single-chip microcomputer main control chip obtains the sensor signal of sensor group output by analog to digital conversion circuit, namely the parameter detecting to the temperature in current moisture content value and dry kiln and humidity value is completed, described single-chip microcomputer main control chip is by more current moisture content value and processing technology requirements, export control signal and control described temperature heater, described humidity generator, described circulating fan and described air exhauster start and stop, make current warm and humid angle value reach drying process requirement.Simultaneously, some machining state information in timber drying are uploaded to remote server by wireless network by described single-chip microcomputer main control chip, remote server sends control command again to described single-chip microcomputer main control chip, makes described single-chip microcomputer main control chip control executing agency's actions such as described temperature heater according to described control command.
If humidity value is low, then opens by controlling described first relay, starting described humidity generator, increasing dry kiln humidity.
If humidity is too large, then by controlling described first cut-off, stops described humidity generator, controlling described 4th relay and open, start described air exhauster, humid air discharges dry kiln, reduces dry kiln humidity.
If temperature value is low, then opens by controlling described second relay, starting described temperature heater, promoting dry kiln temperature.
If temperature is too large, then by controlling described second cut-off, stops described temperature heater, controlling described 4th relay and open, start described air exhauster, hot-air discharges dry kiln, reduces dry kiln temperature.
Described circulating fan for completing the shuttling movement of dry furnace air, make dry kiln temperature and humidity even.It is start by set date that described circulating fan starts.Every 3 minutes, described single-chip microcomputer main control chip control the 3rd relay was opened, and started circulating fan and ran, control the 3rd cut-off after described circulating fan runs 1 minute.
Moisture content Detection & Controling device described in the present embodiment, comprises sensor group, measuring circuit, analog to digital conversion circuit, single-chip microcomputer main control chip, temperature heater, humidity generator, circulating fan, air exhauster and remote server; Sensor group comprises multiple moisture sensor, multiple temperature sensor and multiple humidity sensor; Measuring circuit is connected with sensor group; Analog to digital conversion circuit is connected with measuring circuit; Single-chip microcomputer main control chip is connected with analog to digital conversion circuit, temperature heater, humidity generator, circulating fan and air exhauster respectively; Remote server carries out data communication by communication and single-chip microcomputer main control chip.This device can detect moisture content by real-time online in timber drying, judge according to the moisture content value analysis detected, control temperature and the humidity value of drying kiln for drying medium again, realize the control to moisture content, make wood drying quality reach processing request.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (8)
1. a moisture content Detection & Controling device, is characterized in that, comprising:
Sensor group, measuring circuit, analog to digital conversion circuit, single-chip microcomputer main control chip, temperature heater, humidity generator, circulating fan, air exhauster and remote server;
Described sensor group comprises multiple moisture sensor, multiple temperature sensor and multiple humidity sensor;
Described measuring circuit is connected with described sensor group, for carrying out signal amplification, filtering and noise reduction and amplitude limiting processing to the described sensor group output signal received;
Analog-digital conversion circuit as described is connected with described measuring circuit, for carrying out analog-to-digital conversion to described measuring circuit output signal;
Described single-chip microcomputer main control chip is connected with analog-digital conversion circuit as described, described temperature heater, described humidity generator, described circulating fan and described air exhauster respectively;
Described remote server carries out data communication by communication and described single-chip microcomputer main control chip.
2. moisture content Detection & Controling device according to claim 1, is characterized in that: described measuring circuit comprises operational amplification circuit, filter circuit, amplitude limiter circuit and programmable gain circuit.
3. moisture content Detection & Controling device according to claim 1 and 2, is characterized in that: be connected with the first photoelectric isolating circuit, the first relay between described single-chip microcomputer main control chip and described humidity generator in turn; The first photoelectric isolating circuit, the second relay is connected with in turn between described single-chip microcomputer main control chip and described temperature heater.
4. moisture content Detection & Controling device according to claim 3, is characterized in that: be connected with the second photoelectric isolating circuit, the 3rd relay between described single-chip microcomputer main control chip and described circulating fan in turn; The second photoelectric isolating circuit, the 4th relay is connected with in turn between described single-chip microcomputer main control chip and described air exhauster.
5. moisture content Detection & Controling device according to claim 4, is characterized in that: described moisture sensor is needle-like steel nail probe.
6. moisture content Detection & Controling device according to claim 5, is characterized in that: described temperature sensor is Pt100 platinum resistance temperature sensor.
7. moisture content Detection & Controling device according to claim 6, is characterized in that: described humidity sensor is wet-bulb thermometer.
8. moisture content Detection & Controling device according to claim 7, it is characterized in that, also comprise: indicator lamp and button, described indicator lamp and described button are connected with described single-chip microcomputer main control chip respectively, described indicator lamp is for showing timber drying state, and described button is used for the setting of machined parameters in timber drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407697.4U CN204787760U (en) | 2015-06-12 | 2015-06-12 | Moisture content of wood detects and controlling means |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520407697.4U CN204787760U (en) | 2015-06-12 | 2015-06-12 | Moisture content of wood detects and controlling means |
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| CN204787760U true CN204787760U (en) | 2015-11-18 |
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| CN201520407697.4U Expired - Fee Related CN204787760U (en) | 2015-06-12 | 2015-06-12 | Moisture content of wood detects and controlling means |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483552A (en) * | 2017-03-30 | 2021-10-08 | 特吕茨施勒有限及两合公司 | Module for determining the residual moisture of a web of fabric for use in a dryer |
| CN114659342A (en) * | 2022-03-24 | 2022-06-24 | 中国农业大学 | Traditional Chinese medicine browning drying device and method based on accurate temperature and humidity control |
-
2015
- 2015-06-12 CN CN201520407697.4U patent/CN204787760U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483552A (en) * | 2017-03-30 | 2021-10-08 | 特吕茨施勒有限及两合公司 | Module for determining the residual moisture of a web of fabric for use in a dryer |
| CN113483552B (en) * | 2017-03-30 | 2022-11-18 | 特吕茨施勒集团欧洲公司 | Module for determining the residual moisture of a web of fabric for use in a dryer |
| CN114659342A (en) * | 2022-03-24 | 2022-06-24 | 中国农业大学 | Traditional Chinese medicine browning drying device and method based on accurate temperature and humidity control |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20160612 |
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| CF01 | Termination of patent right due to non-payment of annual fee |