CN201600171U - Light refraction-type non-contact liquid level monitoring device and monitoring system adopting same - Google Patents
Light refraction-type non-contact liquid level monitoring device and monitoring system adopting same Download PDFInfo
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- CN201600171U CN201600171U CN2010203020521U CN201020302052U CN201600171U CN 201600171 U CN201600171 U CN 201600171U CN 2010203020521 U CN2010203020521 U CN 2010203020521U CN 201020302052 U CN201020302052 U CN 201020302052U CN 201600171 U CN201600171 U CN 201600171U
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Abstract
The utility model relates to a liquid level monitoring device and particularly provides a light refraction-type non-contact liquid level monitoring device and a monitoring system adopting the same. The utility model solves the problems in the traditional liquid level sensor, such as high cost, poor sensitivity and accuracy and bad reliability. The liquid level monitoring device comprises a light source, a light sensor, a power source and a monitoring unit, wherein the anode and the cathode of the power source are connected with the anode and the cathode of the light sensor, the signal output terminal of the light sensor is connected with the signal input terminal of the monitoring unit, and the light source is arranged on the outer wall of a pipe, the light sensor is arranged on the outer wall of the pipe in such a position that the light emitted from the light source reaches after being refracted when no liquid flows in the pipe or the light emitted from the light source doesn't reach after being refracted when the liquid flows in the pipe. In the monitoring system, the wireless terminals and the control consoles are connected with a local-area network through a wireless sensor network, and the individual wireless terminals and a plurality of monitoring units in the local region form the wireless sensor network taking the wireless terminals as a center. The light refraction-type non-contact liquid level monitoring device and the monitoring system are applied to the liquid level monitoring in case that the liquid on the wall of the pipe wall or inside the pipe is light-transmitting medium.
Description
Technical field
The utility model relates to level monitoring device.
Background technology
Existing liquid level gauge or liquid level/liquid level alarm mostly are contact, and the signals collecting parts contact with testing liquid, can't be applied to not allow the liquid monitoring that contacts, as medical Transfusion device.Monitoring media such as the many employings of existing contactless device are ultrasonic, laser, bulky, complex structure, cost are very high, cost an arm and a leg, and can't be applied to comprise the aspect in above-mentioned field.Once induction type liquid level sensor and Weighing type liquid level sensor occurred, induction type liquid level sensor utilizes big this characteristic of the permittivity ratio air of liquid for this reason; The Weighing type liquid level sensor utilizes the weight of liquid this characteristic that is directly proportional with volume.Because most of liquid is transparent, and opaque solution all has sagging or adhesion, therefore induction type liquid level sensor and Weighing type liquid level sensor are all poor on sensitivity, accuracy, reliability, and as the device that involves life security, practicality is good inadequately.
The utility model content
The utility model provides a kind of anaclasis formula non-contact type level monitoring device in order to solve cost height, sensitivity, accuracy, all poor problem of reliability that existing liquid level sensor exists.
Anaclasis formula non-contact type level monitoring device, it comprises light source, light activated element, power supply and monitoring means, the positive pole of described power supply links to each other with the positive pole of light activated element, the negative pole of power supply links to each other with the negative pole of light activated element, the signal output part of light activated element links to each other with the signal input part of monitoring means, described light source is arranged on the outer wall of pipeline, light activated element is arranged on the outer wall of pipeline and the position is set and can be irradiated to for passing through duct wall refract light photosensitive elements when light source sends during no liquid pipeline in light, and the light that light source sends when in the pipeline liquid being arranged passes through in duct wall and the pipeline that the liquid refracting light activated element can not be irradiated to or illumination significantly reduces.
Principle of work: when in the pipeline liquid being arranged, the refracted ray M2 behind the liquid of the light that light source sends in piping and pipeline and the angle of normal are a, owing to produce the effect of converging through superrefraction, the light that light source sends can not shine on the light activated element, light activated element is passed to monitoring means with signal, the monitoring means attonity; When in the pipeline during no liquid, the light that light source sends behind piping refracted ray M1 and the angle of normal be b, the light that light source sends can shine on the light activated element, light activated element is passed to monitoring means with signal, monitoring means sends corresponding actions, as sends alerting signal or send flashlight.
Use the monitoring system of anaclasis formula non-contact type level monitoring device, it comprises a plurality of anaclasis formula non-contact type level monitoring devices, a plurality of wireless terminals and control desk, it comprises light source described each anaclasis formula non-contact type level monitoring device, light activated element, power supply and monitoring means, the positive pole of described power supply links to each other with the positive pole of light activated element, the negative pole of power supply links to each other with the negative pole of light activated element, the signal output part of light activated element links to each other with the signal input part of monitoring means, described light source is arranged on the outer wall of pipeline, light activated element is arranged on the outer wall of pipeline and the position is set and can be irradiated to for passing through duct wall refract light photosensitive elements when light source sends during no liquid in the pipeline light, the light that light source sends when in the pipeline liquid being arranged can not be irradiated to through liquid refracting light activated element in duct wall and the pipeline or illumination significantly reduces, the signal input part of described wireless terminal links to each other with the signal output part of monitoring means, and it is the wireless sensor network at center that a plurality of wireless terminals and control desk are formed with the control desk.
Another kind of structure is:
Use the monitoring system of anaclasis formula non-contact type level monitoring device, it comprises a plurality of anaclasis formula non-contact type level monitoring devices, survey terminal and control desk, it comprises light source described each anaclasis formula non-contact type level monitoring device, light activated element, power supply and monitoring means, the positive pole of described power supply links to each other with the positive pole of light activated element, the negative pole of power supply links to each other with the negative pole of light activated element, the signal output part of light activated element links to each other with the signal input part of monitoring means, described light source is arranged on the outer wall of pipeline, light activated element is arranged on the outer wall of pipeline and the position is set and can be irradiated to for passing through duct wall refract light photosensitive elements when light source sends during no liquid in the pipeline light, the light that light source sends when in the pipeline liquid being arranged can not be irradiated to through liquid refracting light activated element in duct wall and the pipeline or illumination significantly reduces, the signal input part of described detection terminal links to each other with the signal output part of monitoring means, and the signal output part of surveying terminal links to each other with the signal input part of control desk.
The utility model utilizes the converge effect of liquid to anaclasis, causes when liquid or no liquid are arranged light activated element place to be subjected to the variation of intensity of illumination.(water for example when in the pipeline liquid being arranged, the refractive index of water is up to 1.33), the light refraction phenomenon that light source sends is obvious, almost can't be mapped on the light activated element all, in case being monitored ducted flow of liquid by it finishes, light activated element can monitor the variation of illumination, even the liquid in the pipeline is opaque liquid, the result is still like this, thereby monitoring means is made corresponding actions according to light activated element two kinds of distinct signals when no liquid is arranged, therefore the utility model can reach very high sensitivity, accuracy, thereby guarantees the reliability in use.The utility model element is few, and is simple in structure, and cost is low, helps applying.The utility model can be applied to duct wall and the interior liquid of pipeline is the liquid level monitoring of optical transmission medium.
Description of drawings
Fig. 1 is the structural representation of anaclasis formula non-contact type level monitoring device.But Fig. 2 is the structural representation of the clamping anaclasis formula non-contact type level monitoring device of embodiment two.Fig. 3 is the structural representation of the monitoring system of use anaclasis formula non-contact type level monitoring device.Fig. 4 is the structural representation that has the monitoring system of timing controller and input block.Fig. 5 is the structural representation of the another kind of structure of monitoring system of use anaclasis formula non-contact type level monitoring device.
Embodiment
Embodiment one, in conjunction with Fig. 1 present embodiment is described, anaclasis formula non-contact type level monitoring device, it comprises light source 1, light activated element 2, power supply 9 and monitoring means 4, the positive pole of described power supply 9 links to each other with the positive pole of light activated element 2, the negative pole of power supply 9 links to each other with the negative pole of light activated element 2, the signal output part of light activated element 2 links to each other with the signal input part of monitoring means 4, described light source 1 is arranged on the outer wall of pipeline 7, light activated element 2 is arranged on the outer wall of pipeline 7 and the position is set and can be irradiated to for passing through duct wall refract light photosensitive elements 2 when light source 1 sends during no liquid pipeline 7 in light, and the light that light source 1 sends when in the pipeline 7 liquid being arranged passes through in duct wall and the pipeline that liquid refracting light activated element 2 can not be irradiated to or illumination significantly reduces.
Embodiment two, present embodiment is described in conjunction with Fig. 2, the difference of present embodiment and embodiment one is that anaclasis formula non-contact type level monitoring device also comprises stationary fixture 3, described stationary fixture 3 comprises two clamping plate up and down, each clamping plate has semicircular bayonet socket, the buckle mouth of two clamping plate synthesizes a circle, and have two breach on the circular-hole internal-wall, light activated element 2 is arranged in the breach, and light source 1 is arranged in another breach.
Present embodiment can be used for hospital's transfusion to be used, and when carrying out the drip-feed transfusion, if transfusion drips off and do not extract syringe needle, will have air to enter vein, might cause life danger.When the present hospital ward of event is infused, often all will have families of patients to accompany and attend to, monitor liquid level position, provide against any misfortune, this just makes accompanies and serves people's fatigue unbearably.Use device of the present utility model, anaclasis formula non-contact type level monitoring device is clamped in apart from the syringe needle certain distance woven hose, when liquid level is lower than clip position, can routs up alerting signal automatically, remind my family members or nurse to extract syringe needle, save manpower.Attending family can be chosen in night care or device of the present utility model is clamped on the woven hose when tired, does not delay treatment when guaranteeing the rest of attending family, more can not cause patient's life danger.
Embodiment three, in conjunction with Fig. 1 and Fig. 2 present embodiment is described, the difference of present embodiment and embodiment one or 2 is that light source 1 is pointolite.
Embodiment four, in conjunction with Fig. 1 and Fig. 2 present embodiment is described, the difference of present embodiment and embodiment one or 2 is that light activated element 2 is photoresistance.
Embodiment five, in conjunction with Fig. 2 present embodiment is described, present embodiment and embodiment one, two, three or fours' difference is that light source 1 is adjustable light-pulse generator of cycle.
In hospital's infusion process, adjustable light-pulse generator of 1 employing cycle of light source, periodic, discontinuous emitting beam, not only energy savings but also avoid light that light source 1 produces that the drug effect of medicine is exerted an influence.
Embodiment six, in conjunction with Fig. 2 present embodiment is described, the difference of present embodiment and embodiment five is that the cycle of the light-pulse generator that the cycle is adjustable is 30s.
In hospital's infusion process, every 30s or other cycles monitor liquid level, guarantee that the level change amount does not have air and enters vein in a light period.
Embodiment seven, in conjunction with Fig. 3 present embodiment is described, use the monitoring system of anaclasis formula non-contact type level monitoring device, it comprises a plurality of anaclasis formula non-contact type level monitoring devices 0, a plurality of wireless terminals 5 and control desk 6, described each anaclasis formula non-contact type level monitoring device 0 comprises light source 1, light activated element 2, power supply 9 and monitoring means 4, the positive pole of described power supply 9 links to each other with the positive pole of light activated element 2, the negative pole of power supply 9 links to each other with the negative pole of light activated element 2, the signal output part of light activated element 2 links to each other with the signal input part of monitoring means 4, described light source 1 is arranged on the outer wall of pipeline 7, light activated element 2 is arranged on the outer wall of pipeline 7 and the position is set and can be irradiated to for passing through duct wall refract light photosensitive elements 2 when light source 1 sends during no liquid in the pipeline 7 light, the light that light source 1 sends when in the pipeline 7 liquid being arranged can not be irradiated to through liquid refracting light activated element 2 in duct wall and the pipeline, the signal input part of described wireless terminal 5 links to each other with the signal output part of monitoring means 4, and it is the wireless sensor network at center that a plurality of wireless terminals 5 are formed with control desk 6 with control desk 6.
Present embodiment can be formed large-scale liquid level supervisory system, for example at large hospital, with wireless terminal 5, be arranged on ward or the corridor, control desk 6 is arranged on duty room or medical care rest room, can carry out long-range monitoring to patient just at drop, perhaps working as the unfavorable usefulness of pipeline 7 environment of living in artificially monitors, environment for example is corrosive, can wireless terminal 5 be arranged on pipeline 7 environment of living in, control desk 6 is arranged on workman's monitoring chamber, can carries out remote monitoring by of the present utility model.
Embodiment eight, present embodiment is described in conjunction with Fig. 4, the difference of present embodiment and embodiment seven is to use the monitoring system of anaclasis formula non-contact type level monitoring device also to comprise timing controller 10, and the signal output part of timing controller 10 links to each other with the signal input part of wireless terminal 5.
Can carry out timing according to actual conditions and the default timing controller 10 of solution flow rate, here be example to be adjusted to 1 hour, when arriving Preset Time, timing controller 10 is sent to wireless terminal 5 with the timing end signal, near the control desk 6 staff can be before level monitoring device send alerting signal as yet, prepare for subsequent treatment in advance, carry out remote monitoring by of the present utility model, to increase work efficiency.
Embodiment nine, present embodiment is described in conjunction with Fig. 4, present embodiment and embodiment seven or eights' difference is to use the monitoring system of anaclasis formula non-contact type level monitoring device also to comprise input block 11, and input block 11 signal output parts link to each other with the signal input part of wireless terminal 5.
Input block 11 can input information, conveniently the utility model is carried out mark, for example at large hospital, after medical personnel are fixed on the utility model on the transfusion device, by input block 11 patient's information such as berth are inputed to control desk 6, when corresponding level monitoring device sent alerting signal, near the staff the control desk 6 can judge who patient processing of need changing dressings at once.
Embodiment ten, in conjunction with Fig. 3 and Fig. 4 present embodiment is described, present embodiment and embodiment seven, eight or nines' difference is that wireless terminal 5 is the bluetooth communication unit.
Embodiment 11, in conjunction with Fig. 5 present embodiment is described, use the monitoring system of anaclasis formula non-contact type level monitoring device, it comprises a plurality of anaclasis formula non-contact type level monitoring devices 0, survey terminal 12 and control desk 6, described each anaclasis formula non-contact type level monitoring device 0 comprises light source 1, light activated element 2, power supply 9 and monitoring means 4, the positive pole of described power supply 9 links to each other with the positive pole of light activated element 2, the negative pole of power supply 9 links to each other with the negative pole of light activated element 2, the signal output part of light activated element 2 links to each other with the signal input part of monitoring means 4, described light source 1 is arranged on the outer wall of pipeline 7, light activated element 2 is arranged on the outer wall of pipeline 7 and the position is set and can be irradiated to for passing through duct wall refract light photosensitive elements 2 when light source 1 sends during no liquid in the pipeline 7 light, the light that light source 1 sends when in the pipeline 7 liquid being arranged can not be irradiated to through liquid refracting light activated element 2 in duct wall and the pipeline, the signal input part of described detection terminal 12 links to each other with the signal output part of monitoring means 4, and the signal output part of surveying terminal 12 links to each other with the signal input part of control desk 6.
Claims (10)
1. anaclasis formula non-contact type level monitoring device, it is characterized in that it comprises light source (1), light activated element (2), power supply (9) and monitoring means (4), the positive pole of described power supply (9) links to each other with the positive pole of light activated element (2), the negative pole of power supply (9) links to each other with the negative pole of light activated element (2), the signal output part of light activated element (2) links to each other with the signal input part of monitoring means (4), described light source (1) is arranged on the outer wall of pipeline (7), light activated element (2) is arranged on the outer wall of pipeline (7) and the position is set and can be irradiated to for passing through duct wall refract light photosensitive elements (2) when light source (1) sends during no liquid pipeline (7) in light, and the light that light source (1) sends when in the pipeline (7) liquid being arranged passes through in duct wall and the pipeline that liquid refracting light activated element (2) can not be irradiated to or illumination significantly reduces.
2. anaclasis formula non-contact type level monitoring device according to claim 1, it is characterized in that anaclasis formula non-contact type level monitoring device also comprises stationary fixture (3), described stationary fixture (3) comprises two clamping plate up and down, each clamping plate has semicircular bayonet socket, the buckle mouth of two clamping plate synthesizes a circle, and have two breach on the circular-hole internal-wall, light activated element (2) is arranged in the breach, and light source (1) is arranged in another breach.
3. anaclasis formula non-contact type level monitoring device according to claim 1 and 2 is characterized in that light source (1) is a pointolite, and light activated element (2) is photoresistance.
4. anaclasis formula non-contact type level monitoring device according to claim 2 is characterized in that light source (1) is adjustable light-pulse generator of cycle.
5. anaclasis formula non-contact type level monitoring device according to claim 4, the cycle that it is characterized in that the light-pulse generator that the cycle is adjustable is 30s.
6. use the monitoring system of anaclasis formula non-contact type level monitoring device, it comprises a plurality of anaclasis formula non-contact type level monitoring devices (0), survey terminal (12) and control desk (6), described each anaclasis formula non-contact type level monitoring device (0) comprises light source (1), light activated element (2), power supply (9) and monitoring means (4), the positive pole of described power supply (9) links to each other with the positive pole of light activated element (2), the negative pole of power supply (9) links to each other with the negative pole of light activated element (2), the signal output part of light activated element (2) links to each other with the signal input part of monitoring means (4), described light source (1) is arranged on the outer wall of pipeline (7), light activated element (2) is arranged on the outer wall of pipeline (7) and the position is set and can be irradiated to for passing through duct wall refract light photosensitive elements (2) when light source (1) sends during no liquid in the pipeline (7) light, the light that light source (1) sends when in the pipeline (7) liquid being arranged can not be irradiated to through liquid refracting light activated element (2) in duct wall and the pipeline or illumination significantly reduces, the signal input part of described detection terminal (12) links to each other with the signal output part of monitoring means (4), and the signal output part of surveying terminal (12) links to each other with the signal input part of control desk (6).
7. use the monitoring system of anaclasis formula non-contact type level monitoring device, it is characterized in that it comprises a plurality of anaclasis formula non-contact type level monitoring devices (0), a plurality of wireless terminals (5) and control desk (6), described each anaclasis formula non-contact type level monitoring device (0) comprises light source (1), light activated element (2), power supply (9) and monitoring means (4), the positive pole of described power supply (9) links to each other with the positive pole of light activated element (2), the negative pole of power supply (9) links to each other with the negative pole of light activated element (2), the signal output part of light activated element (2) links to each other with the signal input part of monitoring means (4), described light source (1) is arranged on the outer wall of pipeline (7), light activated element (2) is arranged on the outer wall of pipeline (7) and the position is set duct wall refract light photosensitive elements (2) can be irradiated to or illumination significantly reduces in order to pass through when light source (1) sends during no liquid in the pipeline (7) light, the light that light source (1) sends when in the pipeline (7) liquid being arranged can not be irradiated to through liquid refracting light activated element (2) in duct wall and the pipeline, the signal input part of described wireless terminal (5) links to each other with the signal output part of monitoring means (4), and it is the wireless sensor network at center that a plurality of wireless terminals (5) are formed with control desk (6) with control desk (6).
8. the monitoring system of use anaclasis formula non-contact type level monitoring device according to claim 7, it is characterized in that using the monitoring system of anaclasis formula non-contact type level monitoring device also to comprise timing controller (10), the signal output part of timing controller (10) links to each other with the signal input part of wireless terminal (5).
9. according to the monitoring system of claim 7 or 8 described use anaclasis formula non-contact type level monitoring devices, use the monitoring system of anaclasis formula non-contact type level monitoring device also to comprise input block (11), input block (11) signal output part links to each other with the signal input part of wireless terminal (5).
10. according to the monitoring system of claim 7 or 8 described use anaclasis formula non-contact type level monitoring devices, it is characterized in that wireless terminal (5) is the bluetooth communication unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203020521U CN201600171U (en) | 2010-02-01 | 2010-02-01 | Light refraction-type non-contact liquid level monitoring device and monitoring system adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203020521U CN201600171U (en) | 2010-02-01 | 2010-02-01 | Light refraction-type non-contact liquid level monitoring device and monitoring system adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201600171U true CN201600171U (en) | 2010-10-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203020521U Expired - Fee Related CN201600171U (en) | 2010-02-01 | 2010-02-01 | Light refraction-type non-contact liquid level monitoring device and monitoring system adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201600171U (en) |
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2010
- 2010-02-01 CN CN2010203020521U patent/CN201600171U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20120201 |