CN203950046U - A kind of hyperchannel seed broadcast leakage pick-up unit based on Fibre Optical Sensor - Google Patents
A kind of hyperchannel seed broadcast leakage pick-up unit based on Fibre Optical Sensor Download PDFInfo
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- CN203950046U CN203950046U CN201420408480.0U CN201420408480U CN203950046U CN 203950046 U CN203950046 U CN 203950046U CN 201420408480 U CN201420408480 U CN 201420408480U CN 203950046 U CN203950046 U CN 203950046U
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Abstract
The utility model relates to a kind of hyperchannel seed broadcast leakage pick-up unit based on Fibre Optical Sensor.Comprise: multi-channel detection unit, fiber amplifier group and monitoring unit, be characterized in: multi-channel detection unit by using is arranged on the seed of the fiber-optic sensor probe detection broadcast leakage in a plurality of seed broadcast leakage passages; Fiber amplifier group is connected with the output terminal of a plurality of Fibre Optical Sensors, and the variable condition that they is recognized to the generation of the broadcast leakage kind period of the day from 11 p.m. to 1 a.m is carried out signal conversion; The output level variable signal of monitoring unit detection fiber amplifier group, carries out sound and light alarm prompting when recognizing the broadcast leakage kind period of the day from 11 p.m. to 1 a.m, the information such as transmission and demonstration seed broadcast leakage quantity, position and time.This device takes full advantage of the resolving ability of Fibre Optical Sensor to different contrast color, has wireless and wired communication functions concurrently, is applicable to seed broadcast leakage monitoring and the remote alarms of Modern Agricultural Machine equipment sowing link.
Description
Technical field
The utility model belongs to a kind of seed broadcast leakage pick-up unit, particularly, is a kind of hyperchannel seed broadcast leakage pick-up unit based on Fibre Optical Sensor.
Background technology
In recent years, along with the development of seeding technique, successively develop the various seed broadcaster of version, drill for sowing in lines, hill-drop drill and precision seeder etc.Precise sowing is, by agriculture requirement, seed is broadcast to the ideal position in soil layer, completes the seeding method that the rational field of crop distributes, and has advantages of province's kind, high yield, has boundless development prospect.Because precision seeder has the totally enclosed feature of seeding process when the seeding operation, therefore only with people's audiovisual, cannot directly monitor its operation quality, as there is mechanical drive fault when the seeding operation, plant case emptying, lead that kind of cylinder stops up, plough by soil block stop up, feed mechanism for seed transmission is malfunctioning etc., and phenomenon of the failure all can cause a line or number row seeding pipe normally to sow, and causes broadcast leakage.Especially large-scale wide cut precision seeder, its operating speed is high, sown scope is wide, once there is above-mentioned phenomenon, can cause large-area broadcast leakage, must cause the heavy losses of agricultural production.So for precision drill, be equipped with perfect performance, the high and cheap pick-up unit of reliability on dispenser, the working of precision drill is carried out to the accurate forecast of Real-Time Monitoring and seed broadcast leakage information, oneself becomes the task of top priority.
Summary of the invention
The purpose of this utility model is to provide a kind of device that can detect in real time the broadcast leakage of precision drill seed, color contrast while having or not seed to pop one's head near it by a plurality of Fibre Optical Sensor identification changes the appearance situation of distinguishing broadcast leakage seed, and the signal condition changing, coherent signal state is converted by corresponding multi-channel optical fibre amplifier, monitoring unit utilizes photoelectric isolating circuit to carry out level conversion to the signal of conversion, when the broadcast leakage kind period of the day from 11 p.m. to 1 a.m being detected, record the seed broadcast leakage time, quantity and position, drive sound light alarming circuit to carry out onsite alarming prompting, and to host computer interface, LCD circuit module and remote monitoring send seed broadcast leakage information.Have advantages of in real time, efficient, reliability is strong, to overcome above-mentioned deficiency, for achieving the above object.
The utility model comprises multi-channel detection unit, fiber amplifier group, monitoring unit; Dispenser in multi-channel detection unit is connected with a plurality of seed broadcast leakage passages successively, a plurality of seed broadcast leakage channel aperture place is provided with fiber-optic sensor probe, fiber amplifier group is connected with a plurality of Fibre Optical Sensors, and monitoring unit is connected with fiber amplifier group by its inner photoelectric isolating circuit;
Multi-channel detection unit: fiber-optic sensor probe is equipped with at a plurality of seed broadcast leakage channel aperture place of dispenser, corresponding vias inner walls is furnished with a plurality of white pads with it, when broadcast leakage seed drops between white pad and fiber-optic sensor probe, the light that Fibre Optical Sensor sends is owing to being subject to the signal condition that stopping of dark brown seed changes;
Fiber amplifier group: the switching value signal that the variable signal state of a plurality of Fibre Optical Sensors is amplified and convert generation certain voltage grade;
Monitoring unit: the switching value signal of detection fiber amplifier group output carries out the identification of broadcast leakage seed, records seed broadcast leakage time, quantity and position, then sends seed broadcast leakage information to host computer or remote monitoring center, and shows in real time with LCD.
The dispenser of multi-channel detection unit is connected with a plurality of seed broadcast leakage passages, the signal condition that the fiber-optic sensor probe that is arranged on a plurality of seed broadcast leakage channel aperture place is touching the broadcast leakage kind period of the day from 11 p.m. to 1 a.m and changes, fiber amplifier group is connected with a plurality of Fibre Optical Sensors, and their variable signal is amplified and converts the switching value signal that produces certain voltage grade, monitoring unit utilizes photoelectric isolating circuit to carry out level conversion to the output signal of fiber amplifier group, by detecting the switching value variable signal of its output, carry out the identification of broadcast leakage seed, record the broadcast leakage time of seed, quantity and position, then to host computer or remote monitoring center, send the information of seed broadcast leakage, and show in real time in LCD mode.
Above-mentioned multi-channel detection unit consists of to n Fibre Optical Sensor to n passage, the first to n white pad, first dispenser, first, the seed broadcast leakage outlet of dispenser is connected to n passage with first successively, first has aperture to n passage, the first probe to n Fibre Optical Sensor is embedded into the first inwall to n passage by aperture successively, the first inwall to n passage has been placed with respectively the first to n white pad to the relative position of the probe of n Fibre Optical Sensor with first, when first, to the broadcast leakage seed in n passage, drop into first to n Fibre Optical Sensor, in the time of between the first to n white pad, due to first, to n fiber-optic sensor probe, sense that color contrast changes, the first status signal changing to n Fibre Optical Sensor.
Above-mentioned fiber amplifier group consists of to n fiber amplifier the first power supply (12-24V), first; The first signal input part to n fiber amplifier is connected and carries out signal conversion with the first signal output part to n Fibre Optical Sensor in multi-channel detection unit successively, and the first feeder ear to n fiber amplifier is connected and to n fiber amplifier, powers to n Fibre Optical Sensor, first to first with the both positive and negative polarity of the first power supply (12-24V) respectively.
Above-mentioned monitoring unit is by photoelectric isolating circuit, microcontroller, GPS circuit module, LCD circuit module, sound light alarming circuit, second source 3.3-5V, power circuit module, Zigbee circuit module, GPRS circuit module and host computer; Microcontroller comprises I/O input circuit module, a SCI circuit module, the 2nd SCI circuit module, clock circuit module, I/O output circuit module; The signal input part of photoelectric isolating circuit is connected with common ground and the first switching value signal output part to n fiber amplifier of fiber amplifier group, the signal output part of photoelectric isolating circuit is connected with the I/O input circuit module of microcontroller (MCU), the first switching value signal that is 12-24V to n fiber amplifier maximum level is carried out to level conversion and become the switching value signal that maximum level is 3.3-5V; Second source (3.3-5V) is connected with power circuit module, and power circuit module and microcontroller (MCU) are connected their operating voltage is provided with other each circuit module in monitoring unit; Microcontroller (MCU) is connected with Zigbee circuit module, GPRS circuit module and LCD circuit module; The one SCI circuit module of microcontroller (MCU) is connected and communicates with host computer by RS232/485 bus, and to host computer, sends the information such as channel number, broadcast leakage quantity, broadcast leakage time and broadcast leakage position of seed broadcast leakage; The 2nd SCI circuit module of microcontroller (MCU) is connected and communicates with GPS circuit module, and GPS circuit module sends to microcontroller (MCU) the longitude and latitude positional information that multi-channel detection unit recognizes broadcast leakage kind period of the day from 11 p.m. to 1 a.m dispenser place by the 2nd SCI circuit module; The inner clock circuit module of microcontroller (MCU) records by starting internal clocking the time and date that multi-channel detection unit recognizes broadcast leakage seed; Microcontroller (MCU) is connected with remote monitoring center and carries out radio communication with GPRS circuit module by Zigbee circuit module, sends the information such as channel number, broadcast leakage quantity, broadcast leakage time and broadcast leakage position of seed broadcast leakage; LCD circuit module shows the information such as channel number, broadcast leakage quantity, broadcast leakage time and broadcast leakage position of seed broadcast leakage in real time; Microcontroller (MCU) is connected with sound light alarming circuit by I/O output circuit module, when microcontroller (MCU) detects the broadcast leakage kind period of the day from 11 p.m. to 1 a.m, drives hummer and luminotron to carry out alarm.
The utility model takes full advantage of the recognition capability of Fibre Optical Sensor to different contrast color, when auburn broadcast leakage seed approaches from a plurality of passages the light beam that fiber-optic sensor probe sends, the output state of Fibre Optical Sensor changes, the signal condition that fiber amplifier group changes a plurality of Fibre Optical Sensors converts the switching value signal that produces certain voltage grade, monitoring unit carries out level conversion by photoelectric isolating circuit to the switching value signal of fiber amplifier group, formation is applicable to the identification signal of microcontroller operating voltage range, by detecting the low and high level situation of change of I/O input circuit module, judge whether a plurality of passages exist seed broadcast leakage phenomenon, and carry out sound and light alarm prompting, the time of clock circuit module records seed broadcast leakage, the position of dispenser when GPS circuit module records seed broadcast leakage, microcontroller utilizes LCD circuit module to show in real time the channel number of seed broadcast leakage, the broadcast leakage time, the information such as broadcast leakage quantity and broadcast leakage position, in addition, microcontroller can also send above-mentioned seed broadcast leakage information by RS232 or RS485 bus to host computer according to actual needs, or to remote monitoring center, send above-mentioned seed broadcast leakage information by Zigbee circuit module and GPRS circuit module.
Compared with prior art, accuracy of detection of the present invention is high, real-time, cost is low, the needs that are suitable for the nearly remote monitoring of seed broadcast leakage intelligence of various agricultural machinery, can be detected and be reported to the police by the more multichannel seed broadcast leakage of realization after multichannel detecting unit being carried out to seed broadcast leakage passage and the expansion of Fibre Optical Sensor circuit.
Accompanying drawing explanation
Fig. 1 is one-piece construction theory diagram of the present utility model.
Fig. 2 is the circuit theory diagrams of fiber amplifier.
Fig. 3 is the schematic diagram of single channel photoelectric isolating circuit.
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described.
Main part of the present utility model forms (as shown in Figure 1) by multi-channel detection unit, fiber amplifier group and monitoring unit, be characterized in: the dispenser of multi-channel detection unit is connected with a plurality of seed broadcast leakage passages, the signal condition that the fiber-optic sensor probe that is arranged on a plurality of seed broadcast leakage channel aperture place is touching the broadcast leakage kind period of the day from 11 p.m. to 1 a.m and changes, fiber amplifier group is connected with a plurality of Fibre Optical Sensors, and their variable signal is amplified and converts the switching value signal that produces certain voltage grade, monitoring unit utilizes photoelectric isolating circuit to carry out level conversion to the output signal of fiber amplifier group, by detecting the switching value variable signal of its output, carry out the identification of broadcast leakage seed, record the broadcast leakage passage of seed, time, quantity and position, then to host computer or remote monitoring center, send the information of seed broadcast leakage, and show in real time in LCD mode.
Multi-channel detection unit as shown in Figure 1, consists of to n Fibre Optical Sensor to n passage, the first to n white pad, first dispenser, first, the seed broadcast leakage outlet of dispenser is connected to n passage with first successively, first has aperture to n passage, the first probe to n Fibre Optical Sensor is embedded into the first inwall to n passage by aperture successively, the first inwall to n passage has been placed with respectively the first to n white pad to the relative position of the probe of n Fibre Optical Sensor with first, when first, to the broadcast leakage seed in n passage, drop into first to n Fibre Optical Sensor, in the time of between the first to n white pad, due to first, to n fiber-optic sensor probe, sense that color contrast changes, the first status signal changing to n Fibre Optical Sensor.
Fiber amplifier group as shown in Figure 1, consists of to n fiber amplifier the first power supply (12-24V), first; The first signal input part to n fiber amplifier is connected and carries out signal conversion with the first signal output part to n Fibre Optical Sensor in multi-channel detection unit successively, and the first feeder ear to n fiber amplifier is connected and to n fiber amplifier, powers to n Fibre Optical Sensor, first to first with the both positive and negative polarity of the first power supply (12-24V) respectively.
Monitoring unit as shown in Figure 1, consists of photoelectric isolating circuit, microcontroller (MCU), GPS circuit module, LCD circuit module, sound light alarming circuit, second source (3.3-5V), power circuit module, Zigbee circuit module, GPRS circuit module and host computer; Microcontroller comprises I/O input circuit module, a SCI circuit module, the 2nd SCI circuit module, clock circuit module, I/O output circuit module; The signal input part of photoelectric isolating circuit is connected with common ground and the first switching value signal output part to n fiber amplifier of fiber amplifier group, the signal output part of photoelectric isolating circuit is connected with the I/O input circuit module of microcontroller (MCU), the first switching value signal that is 12-24V to n fiber amplifier maximum level is carried out to level conversion and become the switching value signal that maximum level is 3.3-5V; Second source (3.3-5V) is connected and provides operating voltage to them with other circuit module of power circuit module and monitoring unit; Microcontroller is connected with Zigbee circuit module, GPRS circuit module and LCD circuit module; The one SCI circuit module of microcontroller is connected and communicates with host computer by RS232/485 bus, sends the information such as channel number, broadcast leakage quantity, broadcast leakage time and broadcast leakage position of seed broadcast leakage; The 2nd SCI circuit module of microcontroller is connected and communicates with GPS circuit module, and GPS circuit module sends to microcontroller the longitude and latitude positional information that multi-channel detection unit recognizes broadcast leakage kind period of the day from 11 p.m. to 1 a.m dispenser place; Clock circuit module records multi-channel detection unit recognizes the time and date of broadcast leakage seed; Microcontroller (MCU) is connected and carries out radio communication with remote monitoring center with GPRS circuit module by Zigbee circuit module, and sends the information such as channel number, broadcast leakage quantity, broadcast leakage time and broadcast leakage position of seed broadcast leakage; LCD circuit module shows the information such as channel number, broadcast leakage quantity, broadcast leakage time and broadcast leakage position of seed broadcast leakage in real time by modes such as real time data, curves; Microcontroller (MCU) is connected with sound light alarming circuit by I/O output circuit module, when microcontroller (MCU) detects the broadcast leakage kind period of the day from 11 p.m. to 1 a.m, by exporting corresponding low and high level, drives hummer and luminotron to carry out alarm.
First to n fiber amplifier as shown in Figure 2, major loop, diode D1 ~ D3, triode T1, triode T2, load 1 and load 2, consists of; The input end of major loop is connected with the output signal end of Fibre Optical Sensor, first output port of major loop is connected with the negative pole of diode D1, the positive pole of diode D1 respectively with the negative pole of emitter, diode D2 and D3 of triode T1 and T2, the positive pole of the first power supply (12 ~ 24V) is connected, the negative pole of the first power supply (12 ~ 24V) is connected with the negative pole of the 4th port, load 1 and the load 2 of major loop as the ground wire of the input signal of photoelectric isolating circuit; Second output port of major loop is connected with the base stage of triode T1, and the collector of triode T1 is connected as the signal output part of fiber amplifier with the positive pole of diode D2 and the positive pole of load 2 respectively, and is connected with the signal input part of photoelectric isolating circuit; The 3rd output port of major loop is connected with the base stage of triode T2, and the collector of triode T2 is connected with the positive pole of load 1 with diode D3.
Single channel photoelectric isolating circuit as shown in Figure 3, consists of resistance R 1, resistance R 2, optocoupler TLP113, first pin of optocoupler TLP113 is connected (as shown in Figure 2) with first one of them signal output part to n fiber amplifier (being the collector of triode T1), the 3rd pin of optocoupler TLP113 is connected with resistance R 1 one end, the other end of resistance R 1 is connected (as shown in Figure 2) with the first ground wire to the first power supply (12-24V) in n fiber amplifier, the 6th pin of optocoupler TLP113 is connected with the positive pole of second source (3.3-5V) and one end of pull-up resistor R2, the other end of pull-up resistor R2 is connected as the I/O input circuit module by signal of microcontroller (MCU) with the 5th pin of optocoupler TLP113, the 4th pin of optocoupler TLP113 is connected with the ground wire of second source (3.3-5V).
In embodiment of the present utility model, by what dispenser was connected, first to n passage, carry out perforate, then the first probe to n Fibre Optical Sensor is embedded into the first perforate to n passage inner, and first to n vias inner walls and the first probe to n Fibre Optical Sensor over against direction be placed with the white background pad of large-size (much larger than the cross-sectional area of broadcast leakage seed), when broadcast leakage seed fall into the first probe to n Fibre Optical Sensor and first to n vias inner walls first to n white pad between time, because the first light sending to the probe of n Fibre Optical Sensor is subject to stopping of dark brown broadcast leakage kind grain, corresponding the first switching value signal to the output of n fiber amplifier being connected will change with it, and (first to being the high level of 12-24V during without broadcast leakage kind grain near the probe of n Fibre Optical Sensor, while having broadcast leakage kind grain between the first probe to n Fibre Optical Sensor and the first to n white pad, become low level), photoelectric isolating circuit consists of multichannel optocoupler device circuitry, be connected with the first switching value signal output part to n fiber amplifier in fiber amplifier group successively, the signal that is 12-24V by high level is converted into the switching value signal that high level is 3.3-5V, whether the switching value signal that microcontroller (MCU) detects photoelectric isolating circuit by I/O input circuit module is that low level judges whether first have broadcast leakage seed to n passage, when first when having broadcast leakage seed to occur in any one passage of n passage, clock circuit module records in monitoring unit time and date now, GPS circuit module in monitoring unit records the now latitude and longitude information of dispenser when operation, simultaneously, microcontroller (MCU) carries out buzzer warning and LED lamp flash for prompting by I/O output circuit module drive sound light alarming circuit, based on Zigbee circuit module or GPRS circuit module, to remote monitoring center, send seed broadcast leakage channel number, the broadcast leakage time, broadcast leakage quantity and broadcast leakage latitude and longitude information, utilize RS232 or RS485 bus by a SCI circuit module, to the host computer interface of dispenser operation field, to be sent seed broadcast leakage channel number, the broadcast leakage time, broadcast leakage quantity and broadcast leakage latitude and longitude information, and drive LCD circuit module to show in real time by I/O mouth.
The content not being described in detail in the utility model instructions belongs to the known prior art of this professional domain technician.
Claims (4)
1. the hyperchannel seed broadcast leakage pick-up unit based on Fibre Optical Sensor, is characterized in that: comprise multi-channel detection unit, fiber amplifier group, monitoring unit;
Dispenser in multi-channel detection unit is connected with a plurality of seed broadcast leakage passages, a plurality of seed broadcast leakage channel aperture place is provided with fiber-optic sensor probe, fiber amplifier group is connected with a plurality of Fibre Optical Sensors, monitoring unit is connected with fiber amplifier group by its inner photoelectric isolating circuit, monitoring unit is connected with host computer by inner serial communication circuit, and monitoring unit is connected with remote monitoring center by inner radio communication circuit.
2. a kind of hyperchannel seed broadcast leakage pick-up unit based on Fibre Optical Sensor as claimed in claim 1, is characterized in that: described multi-channel detection unit comprises that dispenser, first is to n seed broadcast leakage passage, the first to n white pad, first to n Fibre Optical Sensor; The seed broadcast leakage outlet of dispenser is connected to n seed broadcast leakage passage with first successively, first has aperture to n seed broadcast leakage passage, the first probe to n Fibre Optical Sensor is embedded into the first inwall to n seed broadcast leakage passage by aperture successively, and the first inwall to n seed broadcast leakage passage has been placed with respectively the first to n white pad to the relative position of the probe of n Fibre Optical Sensor with first.
3. a kind of hyperchannel seed broadcast leakage pick-up unit based on Fibre Optical Sensor as claimed in claim 1 or 2, is characterized in that: described fiber amplifier group comprises that the first power supply 12-24V, first is to n fiber amplifier; The first signal input part to n fiber amplifier is connected and carries out signal conversion with the first signal output part to n Fibre Optical Sensor in multi-channel detection unit respectively, and the first feeder ear to n fiber amplifier is connected and to n fiber amplifier, powers to n Fibre Optical Sensor, first to first with the both positive and negative polarity of the first power supply 12-24V respectively.
4. a kind of hyperchannel seed broadcast leakage pick-up unit based on Fibre Optical Sensor as claimed in claim 3, is characterized in that: described monitoring unit comprises photoelectric isolating circuit, microcontroller, GPS circuit module, LCD circuit module, sound light alarming circuit, second source 3.3-5V, power circuit module, Zigbee circuit module, GPRS circuit module and host computer; Microcontroller comprises I/O input circuit module, a SCI circuit module, the 2nd SCI circuit module, clock circuit module, I/O output circuit module;
The signal input part of photoelectric isolating circuit is connected with common ground and the first switching value signal output part to n fiber amplifier of fiber amplifier group, and the signal output part of photoelectric isolating circuit is connected with the I/O input circuit module of microcontroller; Second source 3.3-5V is connected with power circuit module, and power circuit module is connected with each circuit module in monitoring unit with microcontroller, for it provides operating voltage; Microcontroller is connected with Zigbee circuit module, GPRS circuit module, LCD circuit module respectively; The one SCI circuit module of microcontroller is connected and communicates with host computer by RS232/485 bus, the 2nd SCI circuit module of microcontroller is connected and communicates with GPS circuit module, and GPS circuit module sends to microcontroller the longitude and latitude positional information that multi-channel detection unit recognizes broadcast leakage kind period of the day from 11 p.m. to 1 a.m dispenser place; Clock circuit module records multi-channel detection unit recognizes the time and date of broadcast leakage seed; Microcontroller is connected with remote monitoring center and carries out radio communication with GPRS circuit module by Zigbee circuit module; LCD circuit module shows the broadcast leakage information of seed in real time; Microcontroller is connected with sound light alarming circuit by I/O output circuit module, when microcontroller detects the broadcast leakage kind period of the day from 11 p.m. to 1 a.m, drives hummer and luminotron to carry out alarm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420408480.0U CN203950046U (en) | 2014-07-23 | 2014-07-23 | A kind of hyperchannel seed broadcast leakage pick-up unit based on Fibre Optical Sensor |
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| CN201420408480.0U CN203950046U (en) | 2014-07-23 | 2014-07-23 | A kind of hyperchannel seed broadcast leakage pick-up unit based on Fibre Optical Sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504883A (en) * | 2014-12-26 | 2015-04-08 | 苏州市职业大学 | ZigBee-based internet of things hardware platform |
| CN112740877A (en) * | 2020-12-29 | 2021-05-04 | 中国农业大学 | Single controller and detection algorithm of electrically-driven corn precision planter |
| CN113608476A (en) * | 2021-08-06 | 2021-11-05 | 青岛农业大学 | Missing seeding detection and compensation system of air-suction type peanut seeder |
-
2014
- 2014-07-23 CN CN201420408480.0U patent/CN203950046U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504883A (en) * | 2014-12-26 | 2015-04-08 | 苏州市职业大学 | ZigBee-based internet of things hardware platform |
| CN112740877A (en) * | 2020-12-29 | 2021-05-04 | 中国农业大学 | Single controller and detection algorithm of electrically-driven corn precision planter |
| CN112740877B (en) * | 2020-12-29 | 2022-01-04 | 中国农业大学 | Single controller and detection algorithm of electrically-driven corn precision planter |
| CN113608476A (en) * | 2021-08-06 | 2021-11-05 | 青岛农业大学 | Missing seeding detection and compensation system of air-suction type peanut seeder |
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