CN211954198U

CN211954198U - Alarm device for detecting pollution of buoy sensor

Info

Publication number: CN211954198U
Application number: CN202020686661.5U
Authority: CN
Inventors: 刘云平; 于乐逸; 赵迅; 唐梦奇
Original assignee: Nanjing University of Information Science and Technology
Current assignee: Nanjing Zhongke Huaxing emergency Technology Research Institute Co.,Ltd.
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-11-17
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses an alarm device for detecting pollution of a buoy sensor, which arranges a photosensitive sensor probe at one side of a monitored sensor, the photosensitive sensor probe is arranged at the same external environment as the monitored sensor, the pollution degree of the photosensitive sensor probe is the same as the monitored sensor probe, a switch control sheet of a timer circuit is arranged at a position with a very close distance of a probe circuit electromagnet, due to the magnetic force, the switch control sheet is attracted, the timer circuit is in an off state, when the monitored sensor is seriously polluted, the total light quantity is reduced, the resistance value of a photosensitive resistor is increased, the current I of a loop circuit is reduced, the magnetic force of the electromagnet is reduced, the electromagnet circuit can release the switch control sheet of the timer circuit to close the timer circuit, the timer circuit starts to time, and the alarm is triggered to alarm when the time is over, the pollution detection of the buoy sensor is realized, and the detection cost of the pollution of the buoy sensor is reduced.

Description

Alarm device for detecting pollution of buoy sensor

Technical Field

The utility model relates to an environmental monitoring field especially relates to a detect alarm device that buoy sensor pollutes.

Background

The drifting buoy is a platform for monitoring marine hydrological weather, which is widely applied at present, and drifts along with the ocean current on the sea surface or at a certain depth, and the ocean current and water temperature information are detected through a sensor carried by the buoy, a GPS (global positioning system) locator and the like. The drifting buoy belongs to a disposable type, the working state of the drifting buoy is continuously monitored at sea for a long time without being detected by people, the sensor is corroded by the natural environment, and the dirt deposition can cause serious measurement errors and even thorough errors. Therefore, one can detect the sensor pollution and the autoalarm can correct the experimental result well. At present, there are

Such as the turbidity sensor automatic decontamination calibration device disclosed in application No. 201810129653. The device comprises a light-resistant rotating body and a pair of turbidity sensors which are oppositely arranged, wherein the light-resistant rotating body is positioned between the pair of turbidity sensors, a sampling hole is arranged on the light-resistant rotating body, and the sampling hole is communicated with light paths of the pair of turbidity sensors at a certain moment when the rotating body rotates around the axis of the rotating body; the light-resistant rotating body is driven by a driving device. The device sets up the flexible material rotor and carries out the scrubbing through rotating, nevertheless soaks for a long time at ocean alkaline environment and leads to flexible rotor to corrode, not only can't carry out the scrubbing, and the leakproofness can't be guaranteed. Meanwhile, the structure is complex, and once foreign matters enter the device, the work is influenced and the maintenance is inconvenient.

The apparatus uses information provided by one or more vehicle sensors to determine the presence and type of contaminants as disclosed in publication No. 109647835a for automated decontamination of vehicle optical sensor lens covers. A cleaning mode selected based on the type of contaminant is initiated and a determination is made as to whether the cleaning mode has removed the contaminant from the sensor lens cover. The system is provided with a plurality of other sensors for ensuring the normal work of one sensor, and the cost is high. Meanwhile, if the system is applied to an ocean buoy, the cleanliness of a plurality of additionally arranged sensors cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a detect alarm device that buoy sensor pollutes.

In order to realize the purpose of the utility model, the utility model provides an alarm device for detecting the pollution of a buoy sensor, which comprises a detection part and a buoy main body;

the detection part comprises a photosensitive sensor probe and a monitored sensor, and the photosensitive sensor probe is arranged on one side of the monitored sensor;

the buoy body comprises an alarm, a timer circuit and an electromagnet circuit; the electromagnet circuit and the photosensitive sensor probe are arranged in a loop, and when the current value of the loop is greater than or equal to a current threshold value, the electromagnet circuit attracts a switch control sheet of the timer circuit to disconnect the timer circuit; when the current value of the loop is smaller than the current threshold value, the electromagnet circuit releases the switch control sheet of the timer circuit to close the timer circuit, the timer circuit starts timing when closed, and the alarm is triggered to give an alarm when timing is finished.

In one embodiment, the alarm is disposed on the top of the float body.

In one embodiment, the housing of the photoresistor probe conforms to the housing of the sensor being monitored.

In one embodiment, the photoresistor probe is uniformly provided with light holes; the photoresistor probe is sealed by a light-transmitting material.

In one embodiment, the current threshold is set to be a current value in the loop when the light-passing hole of the photoresistor probe covers half of the light-passing hole.

The alarm device for detecting the pollution of the buoy sensor is characterized in that the photosensitive sensor probe is arranged on one side of the monitored sensor or at the adjacent position of the monitored sensor, so that the photosensitive sensor probe is completely the same as the external environment of the monitored sensor, the pollution degree of the photosensitive sensor probe is the same as that of the monitored sensor probe, the switch control sheet of the timer circuit is arranged at the position with a very short distance from the electromagnet of the probe circuit, due to the magnetic force, the switch control sheet is attracted, the timer circuit is in an off state, when the monitored sensor is seriously polluted, the light quantity smaller than the total light inlet quantity is reduced, the resistance value of the photosensitive resistor is increased, the current I of the loop circuit is reduced, the magnetic force of the electromagnet is reduced, the electromagnet circuit can release the switch control sheet of the timer circuit to close the timer circuit, and the timer circuit is closed to, and triggering the alarm to give an alarm when the timing is finished so as to realize the detection of the pollution of the buoy sensor, reduce the detection cost of the pollution of the buoy sensor, and enable related workers to know the condition of the pollution of the buoy sensor in time so as to take effective measures in time.

Drawings

FIG. 1 is a schematic diagram of an embodiment of an alarm device for detecting contamination of a float sensor;

FIG. 2 is a longitudinal cross-sectional view of a photosensor of an embodiment;

FIG. 3 is a schematic view of an embodiment of a housing;

fig. 4 is a schematic view of an alarm device for detecting contamination of a float sensor according to another embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In one embodiment, an alarm device for detecting contamination of a float sensor is provided, including a sensing portion and a float body;

referring to fig. 1, the detecting portion includes a photosensor probe 11 and a monitored sensor (not shown), and the photosensor probe 11 is disposed on one side of the monitored sensor;

the buoy body comprises an alarm 21, a timer circuit 22 and an electromagnet circuit 23; the electromagnet circuit 23 and the photosensitive sensor probe 11 are arranged in a loop, and when the current value of the loop is greater than or equal to the current threshold value, the electromagnet circuit 23 attracts the switch control sheet of the timer circuit 22 to disconnect the timer circuit 22; when the current value of the loop is smaller than the current threshold value, the electromagnet circuit 23 releases the switch control sheet of the timer circuit 22 to close the timer circuit, the timer circuit 22 is closed to start timing, and the alarm 21 is triggered to give an alarm when timing is finished.

The timer circuit 22 is powered on to time, and triggers the alarm to alarm after reaching the set time (the time can be set manually according to actual conditions, such as 1 minute and 10 minutes). If the power is off, the timer is reset from 0, so that the condition of false alarm caused by temporary shielding of the photosensitive probe due to short-time collision of massive sundries in the sea can be effectively avoided.

In the alarm device for detecting the pollution of the buoy sensor, the photosensitive sensor probe 11 is arranged on one side of the monitored sensor or at the adjacent position of the monitored sensor, so that the photosensitive sensor probe 11 is completely the same as the external environment of the monitored sensor, the pollution degree shown by the photosensitive sensor probe 11 is the same as that of the monitored sensor, the switch control sheet of the timer circuit 22 is arranged at the position with a very close distance from the electromagnet of the probe circuit, due to the magnetic force, the switch control sheet is attracted, the timer circuit 22 is in an off state, when the pollution of the detected sensor is serious, the total light incoming quantity is reduced, the resistance value of the photosensitive resistor is increased, the current I of the loop circuit is reduced, the magnetic force of the electromagnet is reduced, the electromagnet circuit 23 releases the switch control sheet of the timer circuit to close the timer circuit, and the timer circuit is closed to start timing, and triggering the alarm to give an alarm when the timing is finished so as to realize the detection of the pollution of the buoy sensor, reduce the detection cost of the pollution of the buoy sensor, and enable related workers to know the condition of the pollution of the buoy sensor in time so as to take effective measures in time.

In one embodiment, the alarm is disposed on the top of the float body.

The alarm is positioned at the top of the whole buoy body, so that the signal is less affected and clear when the alarm is given.

In this embodiment, the shape and material of the casing of the photoresistor probe is completely the same as the shape and material of the casing of the monitored sensor (the monitored sensor), and the photoresistor probe is installed beside the monitored sensor. The photoresistor probes are uniformly and densely provided with light holes and are sealed by light-transmitting materials with similar materials. The inner part is provided with a light-tight material to form a groove, and the photoresistor is plugged in. Therefore, the light of other light holes can not influence the photoresistor in the light holes, and the accuracy is ensured.

Specifically, the current threshold is set to be a current value in the loop when the light-passing hole of the photoresistor probe covers half of the light-passing hole.

In one example, a longitudinal cross-sectional view of the photo-resistor probe can be seen with reference to fig. 2, in fig. 2, 1 denotes a transparent material, 2 denotes a photo-resistor, and 3 denotes an opaque material, as shown, the opaque and transparent materials ensure that the photo-resistor only measures the light variation of the photo-resistor corresponding to the light-transmitting aperture, and is not affected by the light intensity variation of other light-transmitting apertures.

Specifically, the housing of the photoresistor probe can be referred to as shown in fig. 3, where 4 denotes the housing and 5 denotes the light-transmitting holes uniformly arranged on the surface of the housing. The greater the number of light-transmitting holes, the higher the sensitivity of detection. The material and shape of the shell are completely the same as those of the sensor part monitored by the system, and the shell is arranged beside the monitored sensor, so that the pollution condition of the photosensitive sensor is ensured to be the same as that of the monitored sensor.

In an example, the alarm device for detecting the pollution of the float sensor can also refer to fig. 4, and since the photosensitive sensor probe is completely the same as the external environment of the monitored sensor, it can be known that the photosensitive probe (photosensitive sensor probe) shows the same pollution level as the monitored sensor probe.

In the state without external interference, the iron sheet and the circuit in the upper half shown in fig. 4 are in a closed state. The electromagnetic sensor is arranged at a position where the electromagnet of the probe circuit is very close to the electromagnet. Due to the magnetic force, the iron sheet is attracted, and the upper half circuit is in an open state.

The timer (timer circuit) is powered on to time, and the alarm is triggered to alarm after the set time (the time can be set manually according to actual conditions, such as 1 minute and 10 minutes) is reached. If the power is off, the timer is reset from 0, so that the condition of false alarm caused by temporary shielding of the photosensitive probe due to short-time collision of massive sundries in the sea is effectively avoided.

When the detected sensor is seriously polluted, the total light incoming quantity of the photosensitive probe is reduced, the resistance value of the photosensitive resistor is increased, the current I of the circuit is reduced, and the magnetic force of the electromagnet is reduced. When I is less than threshold value I_minAfter (current threshold) (assuming the monitored sensor is not working when it is half shielded, I may be set_minThe current value in the circuit when the light-passing hole is shielded by half), the iron sheet cannot be attracted effectively, and the iron sheet is closed. The timer starts counting time. And after the set time t is reached, the alarm is turned on, maintenance is waited until the maintenance is finished, and the alarm is released when the light flux returns.

The alarm device for detecting the pollution of the buoy sensor can work in seawater for a long time, and the drifting buoy can give an alarm in time when the sensor is polluted by using the device; wherein the photosensitive sensor probe has adopted corrosion-resistant material, and no complicated accurate mechanical structure is exposed simultaneously, has effectively solved the problem that automatic scrubbing device can't work for a long time in harsh environment. And a plurality of kinds of sensors are not arranged for monitoring, so that the cost is low, and the accuracy of the monitoring condition cannot be influenced by the damage of the monitoring sensors.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It should be noted that the terms "first \ second \ third" referred to in the embodiments of the present application merely distinguish similar objects, and do not represent a specific ordering for the objects, and it should be understood that "first \ second \ third" may exchange a specific order or sequence when allowed. It should be understood that "first \ second \ third" distinct objects may be interchanged under appropriate circumstances such that the embodiments of the application described herein may be implemented in an order other than those illustrated or described herein.

The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product, or device that comprises a list of steps or modules is not limited to the listed steps or modules but may alternatively include other steps or modules not listed or inherent to such process, method, product, or device.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An alarm device for detecting the pollution of a buoy sensor is characterized by comprising a detection part and a buoy body;

2. The alarm device for detecting contamination of a float sensor of claim 1, wherein the alarm is disposed on a top portion of the float body.

3. The alarm device for detecting contamination of a float sensor of claim 1, wherein the housing of the light sensitive sensor probe is coincident with the housing of the monitored sensor.

4. The alarm device for detecting the pollution of the buoy sensor as claimed in claim 1, wherein the photosensitive sensor probe is uniformly provided with light-transmitting holes; the photosensitive sensor probe is sealed by a light-transmitting material.

5. The alarm device for detecting the pollution of the float sensor as claimed in claim 4, wherein the current threshold value is set as a current value in the loop when the light through hole of the photosensitive sensor probe covers half.