CN210342797U - Unattended physical and chemical stadium - Google Patents
Unattended physical and chemical stadium Download PDFInfo
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- CN210342797U CN210342797U CN201920822809.0U CN201920822809U CN210342797U CN 210342797 U CN210342797 U CN 210342797U CN 201920822809 U CN201920822809 U CN 201920822809U CN 210342797 U CN210342797 U CN 210342797U
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Abstract
The utility model discloses an unattended physical and chemical stadium, which belongs to the technical field of equipment management of stadiums and comprises a reticular fence with quadrangular cross section and a reticular ceiling fixedly connected with the top of the reticular fence, a plurality of illuminating lamps are fixedly connected with the top of the reticular fence, the illuminating lamps are commonly connected with a control circuit, the control circuit comprises a brightness acquisition module, a brightness comparison module, a personnel induction module and a lamp control module, the brightness acquisition module comprises a brightness sensor fixedly connected with the outside of the reticular fence, the personnel induction module comprises a plurality of infrared induction switches at the bottom of the reticular ceiling, an infrared induction switch array is arranged at the bottom of the reticular ceiling, when the external illumination intensity is lower and personnel exist at the bottom of the reticular ceiling, the control circuit controls the illuminating lamps to be on and off, the condition that the lamp is turned on when no one is in existence can not exist, the electric energy is effectively saved, and the effect of personnel management is not needed.
Description
Technical Field
The utility model belongs to the technical field of stadiums equipment management's technique and specifically relates to an unmanned management stadiums is related to.
Background
Currently, it is a professional place for performing athletic training, athletic competitions and physical exercises. It is a general name of various sport places specially built for meeting the requirements of sport training, sport competition and mass sports consumption. The metal net is surrounded by the metal net, so that the citizens can enter the stadium for sports in the form of direct payment or card renting. As such small stadiums become more and more popular in cities, certain problems arise in their management. Due to the reasons of the area, the flow of people and the like, manual management is inconvenient, and along with the development of network information technology, the existing unattended stadiums are gradually raised.
The prior art can refer to the chinese patent that application bulletin number is CN109427122A, and it discloses a transmission system of stadium resource information, including the control unit, entrance guard's unit and information inquiry unit, the control unit includes user information storage module, place information storage module and training information storage module, user information storage module is connected with entrance guard's unit two-way electricity, place information storage module's input is connected with the output electricity of stadium's unit, the entrance guard's unit is including brushing card module one, security inspection module, information acquisition module and recharging module, the information inquiry unit is including training reservation module, place inquiry module and balance inquiry module, the output of balance inquiry module is connected with recharging module's input electricity.
The above prior art solutions have the following drawbacks: the intelligent management systems are more and more, but the light inside the small stadium is controlled to be on or off under the influence of the external illumination intensity because the small stadium is open, but the light cannot be controlled to be on or off according to the change of the ambient brightness and the flowing situation of people in the stadium because no one carries out field management.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an unmanned management stadiums can go out by light in the automatic control stadiums, can not have the condition of the unmanned man-hour light, effectively practices thrift the electric energy, need not personnel's management.
The above technical purpose of the present invention can be achieved by the following technical solutions:
an unattended physical and chemical stadium comprises a netted fence with a quadrangular cross section and a netted ceiling fixedly connected to the top of the netted fence, wherein a plurality of illuminating lamps are fixedly connected to the top of the netted fence and are commonly connected with a control circuit, and the control circuit comprises a brightness acquisition module, a brightness comparison module, a personnel induction module and a light control module;
the brightness acquisition module comprises a brightness sensor fixedly connected outside the mesh fence, and the brightness sensor detects the external illumination intensity and outputs a brightness value;
the brightness comparison module is connected with the brightness acquisition module and receives the brightness value output by the brightness acquisition module, compares the brightness value with a first preset value, and outputs a first starting signal when the brightness value is smaller than the first preset value;
the personnel sensing module comprises a plurality of infrared sensing switches at the bottom of the meshed ceiling, the infrared sensing switch array is arranged at the bottom of the meshed ceiling, the infrared sensing switches detect whether personnel exist at the bottom of the meshed ceiling, and when any infrared sensing switch detects that personnel exist at the bottom of the meshed ceiling, the personnel sensing module outputs a second starting signal;
the light control module is connected with the brightness comparison module and the personnel induction module, responds to a first starting signal output by the brightness comparison module and a second starting signal output by the personnel induction module, and controls the lighting lamp to be powered on and control the self-locking of the lighting lamp after the light control module receives the first starting signal and the second starting signal simultaneously.
Through adopting above-mentioned scheme, ambient brightness is relatively weak around the cage stadium, and when having personnel's activity in the stadium, and control circuit can light by automatic control light, for providing the illumination in the stadium, the condition of the bright lamp of nobody can not exist, effectively practices thrift the electric energy, need not personnel's management. The self-locking of the illuminating lamp can ensure that the control circuit can not be interfered by the light emitted by the illuminating lamp, so that the control circuit can work normally. The infrared inductive switches arranged in an array can monitor most spaces in a stadium simultaneously, and the situation that the illuminating lamps are turned off or cannot be turned on due to the fact that personnel enter monitoring dead angles is reduced.
The utility model discloses further set up to: the control circuit further comprises a strong light comparison module, the strong light comparison module is connected with the brightness acquisition module and receives a brightness value output by the brightness acquisition module, the strong light comparison module compares the brightness value with a second preset value, the second preset value is larger than the first preset value, when the brightness value is larger than the second preset value, the strong light comparison module transmits a closing signal to the light control module, and the light control module receives the closing signal and then controls the lighting lamp to lose power and remove self-locking of the lighting lamp.
By adopting the scheme, when the external illumination intensity is stronger, the control circuit automatically controls the illuminating lamp to be turned off, and the electric energy is saved.
The utility model discloses further set up to: the top of the reticular ceiling is connected with a shading component, the shading component consists of a plurality of shading plates which are mutually and rotationally connected, the shading plates at the end parts are hinged at one end of the reticular ceiling in the length direction, the shading plates are arranged in an array along the length direction of the reticular ceiling, and the shading plate farthest from the hinged point of the reticular ceiling is rotationally connected with a driving shaft; netted ceiling fixedly connected with motor, fixedly connected with threaded rod on the output shaft of motor, the threaded rod sets up along the length direction of netted ceiling, initiative axle threaded connection is on the threaded rod.
Through adopting above-mentioned scheme, the motor drives the threaded rod and rotates and drive the driving shaft and remove along the length direction of threaded rod, and the pulling light screen expandes or folds, can effectively shield external highlight when the light screen expandes, avoids receiving the highlight in the stadium and penetrates directly, improves personnel's motion and experiences.
The utility model discloses further set up to: the control circuit further comprises a shading control module, the shading control module is connected with the strong light comparison module and responds to a closing signal output by the strong light comparison module, the shading control module controls the motor to rotate positively to drive the shading plate to unfold after receiving the closing signal, and the shading control module controls the motor to rotate negatively to drive the shading plate to fold when not receiving the closing signal.
Through adopting above-mentioned scheme, when control circuit detected external illumination intensity ratio when strong, control circuit can drive the light screen by automatic control motor and expand, for personnel in the stadium shield the highlight, when external illumination intensity weak, control circuit can the automatic control light screen be folding, makes external natural light can shine into in the stadium, guarantees the illumination intensity in the stadium, avoids the illumination intensity in the stadium to cross weak influence personnel's motion.
The utility model discloses further set up to: each shading plate is a photovoltaic cell panel.
Through adopting above-mentioned scheme, photovoltaic cell board can receive external highlight electricity generation when the light screen expandes, provides the electric energy for the stadium.
The utility model discloses further set up to: every light is close to equal fixedly connected with solar panel in netted rail and netted ceiling position department, adjacent solar panel interconnect fixed connection.
Through adopting above-mentioned scheme, the solar panel can reduce the light that the light diverges outward to the stadium, improves the illumination utilization ratio, the energy saving.
The utility model discloses further set up to: the bottom of the mesh ceiling is fixedly connected with a transparent protective cover corresponding to the position of the infrared induction switch, and the protective cover surrounds all the infrared induction switches.
Through adopting above-mentioned scheme, the safety cover can protect infrared inductive switch, prevents that infrared inductive switch from receiving the impact of objects such as ball and causing the damage.
The utility model discloses further set up to: all the illuminating lamps are electrically connected with a capacitor C in common.
Through adopting above-mentioned scheme, electric capacity C can charge when the light is got the electricity, lets the light slowly light up, avoids the light to light suddenly and stabbing people's eyes, and when the light loses the electricity simultaneously, electric capacity C can slowly discharge, makes the light slowly extinguish, avoids arousing personnel discomfort because the environment darkens suddenly.
To sum up, the utility model discloses following beneficial effect has:
1. ambient brightness is relatively weak around the cage stadium, and when having personnel's activity in the stadium, control circuit can light by automatic control light, for providing the illumination in the stadium, the condition of lighting when the nobody can not exist, effectively practices thrift the electric energy, need not personnel's management. The self-locking of the illuminating lamp can ensure that the control circuit can not be interfered by the light emitted by the illuminating lamp, so that the control circuit can work normally. The infrared inductive switches arranged in an array can monitor most of the space in the stadium at the same time, and the situation that the illuminating lamps are turned off or cannot be turned on due to the fact that personnel enter dead monitoring corners is reduced;
2. the motor drives the threaded rod to rotate so as to drive the driving shaft to move along the length direction of the threaded rod, the light shielding plate is pulled to be unfolded or folded, external strong light can be effectively shielded when the light shielding plate is unfolded, direct irradiation of the strong light in a stadium is avoided, and the movement experience of personnel is improved;
3. when control circuit detected external illumination intensity when than stronger, control circuit can automatic control motor drive the light screen and expand, for personnel in the stadium shield the highlight, when external illumination intensity weak, control circuit can the automatic control light screen folding, makes external natural light can shine into the stadium, guarantees the illumination intensity in the stadium, avoids the illumination intensity in the stadium to cross weak influence personnel's motion.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
FIG. 2 is a sectional view of the protruding mesh fence and the illumination lamp in the embodiment;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic view of a projected mesh canopy and an infrared sensing switch in an embodiment;
FIG. 5 is a sectional view of a protruding boot in the embodiment;
FIG. 6 is an exploded view of the highlighting assembly of the embodiment;
FIG. 7 is an enlarged view of portion B of FIG. 5;
FIG. 8 is a schematic circuit diagram of a highlight brightness acquisition module, a brightness comparison module and a highlight light comparison module in an embodiment;
FIG. 9 is a schematic circuit diagram of the outstanding people sensing module and the light control module in the embodiment;
fig. 10 is a circuit diagram of the highlighted light shielding control module in the embodiment.
In the figure, 1, a net fence; 11. an entrance and an exit; 111. an entrance and exit door; 12. an illuminating lamp; 121. a light-gathering plate; 2. a mesh ceiling; 21. a protective cover; 22. a shading component; 221. a visor; 222. a drive shaft; 2221. a moving block; 223. a motor; 224. a threaded rod; 225. a guide post; 3. a brightness acquisition module; 31. a brightness sensor; 32. a brightness comparison module; 33. a strong light comparison module; 4. a personnel sensing module; 41. an infrared inductive switch; 5. a light control module; 6. and a shading control module.
Detailed Description
Example (b): an unattended physical and chemical stadium, as shown in fig. 1, a mesh enclosure 1 with a quadrangular cross section and a mesh ceiling 2 fixedly connected to the top of the mesh enclosure 1, wherein an entrance 11 is arranged on the mesh enclosure 1, an entrance door 111 is hinged to the mesh enclosure 1 at a position corresponding to the entrance 11, and the entrance door 111 can cover the entrance 11. The person can open the access door 111 and move through the access opening 11 into the net enclosure 1.
As shown in fig. 2 and 3, illuminating lamps 12 are fixedly connected to four corners of the top of the net-shaped enclosure 1, respectively. Each illuminating lamp 12 is close to the positions of the netted fence 1 and the netted ceiling 2 and is fixedly connected with a light-gathering plate 121, and the adjacent light-gathering plates 121 are fixedly connected with each other. The light 12 can provide the light source in netted rail 1, and light condensing plate 121 can reduce the light that light 12 diverges outward to the stadium, improves the illumination utilization ratio, the energy saving.
As shown in fig. 4 and 5, a plurality of infrared inductive switches 41 are fixedly connected to the bottom of the mesh-like ceiling 2, and an array of the infrared inductive switches 41 is provided on the bottom of the mesh-like ceiling 2. A transparent protective cover 21 is fixedly connected to the bottom of the mesh-shaped ceiling 2 at a position corresponding to the infrared inductive switches 41, and the protective cover 21 surrounds all the infrared inductive switches 41. The infrared inductive switch 41 can detect whether or not a person is present at the bottom of the mesh-like ceiling 2. The protective cover 21 can protect the infrared inductive switch 41 on the premise of not influencing the normal work of the infrared switch, and prevent the infrared inductive switch 41 from being damaged due to the impact of objects such as balls.
As shown in fig. 1 and 6, a shade assembly 22 is attached to the top of the mesh canopy 2. The shade assembly 22 is composed of a plurality of shades 221 hinged to each other, the shade 221 at the end is hinged to one end of the mesh-shaped ceiling 2 in the longitudinal direction, and the shade 221 is provided along the width direction of the mesh-shaped ceiling 2. The light shading plates 221 are arranged in an array along the length direction of the mesh-shaped ceiling 2, the light shading plate 221 farthest from the hinged point of the mesh-shaped ceiling 2 is rotatably connected with a driving shaft 222, and the driving shaft 222 is arranged along the width direction of the mesh-shaped ceiling 2. The motor 223 is fixedly connected with one end of the top of the netted ceiling 2, the threaded rod 224 is fixedly connected with an output shaft of the motor 223, the threaded rod 224 is arranged along the length direction of the netted ceiling 2, the movable block 2221 is fixedly connected with the position, close to the threaded rod 224, of the driving shaft 222, and the movable block 2221 is in threaded connection with the threaded rod 224. A guide post 225 is fixedly connected to the side of the meshed ceiling 2 away from the threaded post 224, the guide post 225 is arranged along the length direction of the meshed ceiling 2, the threaded post 224 is slidably connected to the guide post 225, and the threaded post 224 slides along the length direction of the guide post 225. Motor 223 drives threaded rod 224 and rotates and drive driving shaft 222 and remove along the length direction of threaded rod 224, and pulling light screen 221 expandes or folds, can effectively shield external highlight when light screen 221 expandes, avoids receiving the highlight directly to penetrate in the stadium, improves personnel's motion experience. Each light shielding plate 221 is a photovoltaic cell panel. The photovoltaic cell panel can receive external strong light power generation when the light screen 221 is unfolded, and electric energy is provided for the stadium.
As shown in fig. 7 and 8, the lighting lamps 12 are commonly connected to a control circuit, which includes a brightness collecting module 3, a brightness comparing module 32, and a strong light comparing module 33. The brightness acquisition module 3 comprises a brightness sensor 31 fixedly connected outside the mesh fence 1. The brightness comparing module 32 includes a comparator T1 electrically connected to one end of the brightness sensor 31, the brightness sensor 31 is electrically connected to a positive input terminal of the comparator T1, and the first preset value Vref1 is input from a negative input terminal of the comparator T1 to the comparator T1. The output end of the comparator T1 is electrically connected with a triode Q1, the base electrode of the triode Q1 is electrically connected with the output end of the comparator T1, the collector electrode of the triode Q1 is electrically connected with a resistor R1, the other end of the resistor R1 is electrically connected with a power supply VCC, the emitter electrode of the triode Q1 is electrically connected with an electromagnetic coil KA1 of the relay, and the other end of the electromagnetic coil KA1 of the relay is grounded.
As shown in fig. 8, the strong light comparing module 33 includes a comparator T2 electrically connected to one end of the luminance sensor 31, the luminance sensor 31 is electrically connected to a positive input terminal of a comparator T2, a second preset value Vref2 is input to the comparator T2 from a negative input terminal of the comparator T2, and the second preset value Vref2 is greater than the first preset value Vref 1. The output end of the comparator T2 is electrically connected with a triode Q2, the base electrode of the triode Q2 is electrically connected with the output end of the comparator T2, the collector electrode of the triode Q2 is electrically connected with a resistor R2, the other end of the resistor R2 is electrically connected with a power supply VCC, the emitter electrode of the triode Q2 is electrically connected with an electromagnetic coil KA2 of the relay, and the other end of the electromagnetic coil KA2 of the relay is grounded.
As shown in fig. 9 and 10, the control circuit further includes a person sensing module 4, a light control module 5, and a light shielding control module 6. The personnel sensing module 4 is connected with all the infrared sensing switches 41, all the infrared sensing switches 41 are connected in parallel, and one end of each infrared sensing switch is electrically connected with a power supply VCC. The light control module 5 comprises a normally open contact KA1-1 of the relay electrically connected to the other end of the infrared induction switch 41, the normally open contact KA1-1 of the relay is connected in parallel with the normally open contact KA3-1 of the relay at two ends, the solenoid KA3 of the relay is electrically connected to the other end of the normally open contact KA1-1 of the relay, the capacitor C is electrically connected to the other end of the solenoid KA3 of the relay, and the four illuminating lamps 12 are mutually connected in parallel and electrically connected to the other end of the capacitor C. The other end of the illuminating lamp 12 is electrically connected with a normally closed contact KA2-1 of the relay, and the other end of the normally closed contact KA2-1 of the relay is grounded.
As shown in FIG. 10, the shading control module 6 comprises a normally open contact KA2-3 of the relay electrically connected to one end of the motor 223, and the other end of the normally open contact KA2-3 of the relay is electrically connected to the power VCC. The other end of the motor 223 is electrically connected with a normally open contact KA2-4 of the relay, and the other end of the normally open contact KA2-4 of the relay is grounded. The normally open contact KA2-3 of the relay and the two ends of the motor 223 are connected in parallel with the normally closed contact KA2-2 of the relay, and the normally closed contact KA2-5 of the relay is connected in parallel with the two ends of the motor 223 and the normally open contact KA2-4 of the relay.
The use method comprises the following steps: the brightness sensor 31 detects the outside illumination intensity in real time and outputs a brightness value, the comparator T1 compares the brightness value with a first preset value Vref1, when the brightness value is smaller than the first preset value Vref1, the comparator T1 outputs a high level signal, a collector and an emitter of the triode Q1 are conducted, the electromagnetic coil KA1 of the relay is electrified, and the normally open contact KA1-1 of the relay is controlled to be closed. When any infrared inductive switch 41 detects that a person exists at the bottom of the mesh-shaped ceiling 2 at the moment, the infrared inductive switch 41 is closed, so that the electromagnetic coil KA3 of the relay is electrified, the normally open contact KA3-1 of the relay is controlled to be closed, a self-locking circuit is formed, and the illuminating lamp 12 is electrified and lighted.
The comparator T2 compares the brightness value with a second preset value Vref2, when the brightness value is larger than the second preset value Vref2, the comparator T2 outputs a high level signal to enable the collector and the emitter of the triode Q2 to be conducted, the electromagnetic coil KA2 of the relay is electrified to control the normally closed contact KA2-1 of the relay, the normally closed contact KA2-2 of the relay and the normally closed contact KA2-5 of the relay to be disconnected, and the normally open contact KA2-3 of the relay and the normally open contact KA2-4 of the relay to be closed. When the illuminating lamp 12 and the electromagnetic coil KA3 of the relay are powered off, the illuminating lamp 12 is extinguished and the self-locking is released. Meanwhile, the motor 223 starts to rotate forward to drive the shading plate 221 to be unfolded, so that the person in the stadium is shielded from strong light.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides an unmanned management physics and chemistry stadium, includes that the cross section is netted rail (1) and the netted ceiling (2) of fixed connection in netted rail (1) top of quadrangle, its characterized in that: the top of the net-shaped fence (1) is fixedly connected with a plurality of illuminating lamps (12), the illuminating lamps (12) are jointly connected with a control circuit, and the control circuit comprises a brightness acquisition module (3), a brightness comparison module (32), a personnel induction module (4) and a light control module (5);
the brightness acquisition module (3) comprises a brightness sensor (31) fixedly connected outside the netted fence (1), and the brightness sensor (31) detects the external illumination intensity and outputs a brightness value;
the brightness comparison module (32) is connected with the brightness acquisition module (3) and receives the brightness value output by the brightness acquisition module (3), the brightness comparison module (32) compares the brightness value with a first preset value, and when the brightness value is smaller than the first preset value, the brightness comparison module (32) outputs a first starting signal;
the personnel sensing module (4) comprises a plurality of infrared sensing switches (41) at the bottom of the meshed ceiling (2), the infrared sensing switches (41) are arranged at the bottom of the meshed ceiling (2) in an array mode, the infrared sensing switches (41) detect whether personnel exist at the bottom of the meshed ceiling (2), and when any infrared sensing switch (41) detects that personnel exist at the bottom of the meshed ceiling (2), the personnel sensing module (4) outputs a second starting signal;
the light control module (5) is connected with the brightness comparison module (32) and the personnel sensing module (4), the light control module (5) responds to a first starting signal output by the brightness comparison module (32) and a second starting signal output by the personnel sensing module (4), and after the light control module (5) receives the first starting signal and the second starting signal simultaneously, the lighting lamp (12) is controlled to be powered on and is controlled to be self-locked by the lighting lamp (12).
2. The unmanned, managed stadium of claim 1, wherein: the control circuit further comprises a strong light comparison module (33), the strong light comparison module (33) is connected with the brightness acquisition module (3) and receives the brightness value output by the brightness acquisition module (3), the strong light comparison module (33) compares the brightness value with a second preset value, the second preset value is larger than the first preset value, when the brightness value is larger than the second preset value, the strong light comparison module (33) transmits a closing signal to the light control module (5), and the light control module (5) receives the closing signal and then controls the light (12) to lose power and remove the self-locking of the light (12).
3. The unmanned, managed stadium of claim 2, wherein: the top of the reticular ceiling (2) is connected with a shading component (22), the shading component (22) consists of a plurality of shading plates (221) which are mutually and rotatably connected, the shading plates (221) at the end parts are hinged at one end of the reticular ceiling (2) in the length direction, the shading plates (221) are arranged in an array manner along the length direction of the reticular ceiling (2), and the shading plate (221) which is farthest from the hinged point of the reticular ceiling (2) is rotatably connected with a driving shaft (222); the motor (223) is fixedly connected with the reticular ceiling (2), the threaded rod (224) is fixedly connected with an output shaft of the motor (223), the threaded rod (224) is arranged along the length direction of the reticular ceiling (2), and the driving shaft (222) is in threaded connection with the threaded rod (224).
4. The unmanned, managed stadium of claim 3, wherein: the control circuit further comprises a shading control module (6), the shading control module (6) is connected with the strong light comparison module (33) and responds to a closing signal output by the strong light comparison module (33), when the shading control module (6) receives the closing signal, the motor (223) is controlled to rotate positively to drive the shading plate (221) to unfold, and when the shading control module (6) does not receive the closing signal, the motor (223) is controlled to rotate negatively to drive the shading plate (221) to fold.
5. The unmanned, managed stadium of claim 2, wherein: each shading plate (221) is a photovoltaic cell panel.
6. The unmanned, managed stadium of claim 1, wherein: each illuminating lamp (12) is close to the position of the reticular fence (1) and the reticular ceiling (2) and is fixedly connected with a light-gathering plate (121), and the adjacent light-gathering plates (121) are fixedly connected with each other.
7. The unmanned, managed stadium of claim 1, wherein: the bottom of the net-shaped ceiling (2) is fixedly connected with a transparent protective cover (21) at the position corresponding to the infrared induction switches (41), and the protective cover (21) surrounds all the infrared induction switches (41).
8. The unmanned, managed stadium of claim 1, wherein: all the illuminating lamps (12) are electrically connected with a capacitor C in common.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920822809.0U CN210342797U (en) | 2019-05-31 | 2019-05-31 | Unattended physical and chemical stadium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920822809.0U CN210342797U (en) | 2019-05-31 | 2019-05-31 | Unattended physical and chemical stadium |
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| CN210342797U true CN210342797U (en) | 2020-04-17 |
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| CN201920822809.0U Expired - Fee Related CN210342797U (en) | 2019-05-31 | 2019-05-31 | Unattended physical and chemical stadium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114946427A (en) * | 2020-11-23 | 2022-08-30 | 江苏省农业科学院 | Rhododendron cuttage quality of taking root viewing device |
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2019
- 2019-05-31 CN CN201920822809.0U patent/CN210342797U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114946427A (en) * | 2020-11-23 | 2022-08-30 | 江苏省农业科学院 | Rhododendron cuttage quality of taking root viewing device |
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Granted publication date: 20200417 Termination date: 20210531 |