Humidity alarm label

Abstract

The humidity alarm label comprises a substrate, a light source part, a blocking part and an alarm part, the light source part comprises a power supply and a laser light source, the power supply and the laser light source are connected in series, the blocking part is arranged above the light source part, the blocking part is of a light-proof structure when the blocking part is dry, and the blocking part is of a light-transmitting structure after absorbing water; the alarm part is arranged above the blocking part, comprises a photosensitive switch and a signal transmitter which are connected in series, and is connected with the laser light source in parallel. The light-proof blocking part is arranged between the light source part and the alarm part, after the blocking part absorbs water and becomes transparent due to the humidity of the surrounding environment of the goods, the light activated switch can capture the light emitted by the light source part, and therefore the signal transmitter is conducted to send an alarm signal to the outside; the goods humidity monitoring system can be applied to single goods, and independent humidity monitoring is carried out on each goods; the structure is simple, the cost of parts is low, and application and popularization on agricultural goods are better facilitated.

Description

Technical Field

[0001] The utility model relates to the field of labels, and particularly to a humidity alarm label. Background Art

[0002] In the process of cold chain logistics, some goods have high requirements for a stable humidity environment. Changes in humidity may cause them to deteriorate. In the current transportation links of cold chain logistics, due to loading, unloading or handling, the humidity around the goods will change. Therefore, it is very necessary to monitor the humidity inside the package in real time.

[0003] The existing humidity monitoring methods have the following problems: 1. The cold chain transport vehicle can only monitor the humidity inside the carriage and cannot refine to each item of goods; 2. Currently, integrated circuit chips are usually used for humidity monitoring. The production cost of these chips is high, which is not conducive to application and promotion on agricultural goods. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a humidity alarm label to solve the above problems.

[0005] According to one aspect of the utility model, a humidity alarm label is provided, including: a base, a light source part, a blocking part and an alarm part. The light source part includes a power supply and a laser light source, and the power supply is connected in series with the laser light source. The blocking part is arranged above the light source part. The blocking part is an opaque structure when dry and a light-transmitting structure after absorbing moisture. The alarm part is arranged above the blocking part. The alarm part includes a photosensitive switch and a signal transmitter connected in series, and the alarm part is connected in parallel with the laser light source.

[0006] In some embodiments, the blocking part includes a transparent glass plate, and a water-wet color-changing ink layer is coated on the outer side of the transparent glass plate. The water-wet color-changing ink layer is a white and opaque structure when dry and a light-transmitting structure after absorbing moisture.

[0007] In some embodiments, the signal transmitter is an NFC radio frequency transmitter. When the photosensitive switch is triggered, the NFC radio frequency transmitter works to emit a radio frequency signal.

[0008] In some embodiments, the blocking part and the photosensitive switch are on the same straight line.

[0009] In some embodiments, the photosensitive switch faces the blocking part, and light-shielding plates are arranged on both sides of the sensing end of the photosensitive switch.

[0010] Compared with the prior art, the beneficial effects of this application are:

[0011] In this application, an opaque blocking part is provided between the light source part and the alarm part. When the environment around the goods is dry, the photosensitive switch is in an off state. When the humidity of the environment around the goods causes the blocking part to absorb water and become transparent, the photosensitive switch can capture the light emitted by the light source part, thereby turning on the signal transmitter to send an alarm signal to the outside world, improving the accuracy of humidity monitoring; this application can be applied to a single good to conduct separate humidity monitoring for each good; the structure of this application is simple and the component cost is relatively low, which is more conducive to application and promotion on agricultural goods. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the circuit connection structure of the present utility model. Detailed Embodiments

[0013] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0014] Reference Figure 1 , this application provides a humidity alarm label, including: a substrate, a light source part, a blocking part 1 and an alarm part. The light source part includes a power supply 2 and a laser light source 3. The power supply 2 is connected in series with the laser light source 3. The blocking part 1 is arranged above the light source part. The blocking part 1 has an opaque structure when dry and a light-transmitting structure after absorbing moisture. The alarm part is arranged above the blocking part 1. The alarm part includes a photosensitive switch 4 and a signal transmitter 5 connected in series. The alarm part is connected in parallel with the laser light source 3.

[0015] In some embodiments, the blocking part 1 includes a transparent glass plate, and a water-wet color-changing ink layer is coated on the outer side of the transparent glass plate. The water-wet color-changing ink layer has a white and opaque structure when dry and a light-transmitting structure after absorbing moisture. The water-changing ink is a water-based silk-screen ink that is white itself, becomes transparent when exposed to water, and returns to white after drying; when the environmental humidity increases, it can change from white to transparent.

[0016] In some embodiments, the signal transmitter 5 is an NFC radio frequency transmitter. When the photosensitive switch 4 is triggered, the NFC radio frequency transmitter works to emit a radio frequency signal, and an NFC radio frequency receiver for receiving the radio frequency signal is arranged near the goods.

[0017] In some embodiments, the blocking part 1 and the photosensitive switch 4 are on the same straight line.

[0018] In some embodiments, the photosensitive switch 4 faces the blocking portion 1, and light-shielding plates 6 are arranged on both sides of the sensing end of the photosensitive switch 4 to prevent external light from entering the sensing end of the photosensitive switch 4 and causing false alarms.

[0019] The humidity monitoring principle of this application: During use, the laser light source 3 is in the on state, and the photosensitive switch 4 is in the off state; when the humidity around the goods increases, after the blocking portion 1 absorbs water vapor and gradually becomes transparent, the light emitted by the laser light source 3 can pass through the blocking portion 1 and enter the sensing end of the photosensitive switch 4. After the photosensitive switch 4 senses the light, it conducts the signal transmitter 5, causing the signal transmitter 5 to send an alarm signal to the outside.

[0020] This application provides an opaque blocking portion 1 between the light source portion and the alarm portion. When the environment around the goods is dry, the photosensitive switch 4 is in the off state. When the humidity of the environment around the goods causes the blocking portion 1 to absorb water and become transparent, the photosensitive switch 4 can capture the light emitted by the light source portion, thereby conducting the signal transmitter 5 to send an alarm signal to the outside, improving the accuracy of humidity monitoring; this application can be applied to a single piece of goods to monitor the humidity of each piece of goods separately; the structure of this application is simple and the component cost is low, which is more conducive to application and promotion on agricultural goods.

[0021] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A humidity alarm label, characterized in that, Comprising: A base, a light source unit, a blocking unit, and an alarm unit. The light source unit includes a power supply and a laser light source, the power supply is connected in series with the laser light source, the blocking unit is disposed above the light source unit, the blocking unit is an opaque structure when dry, and the blocking unit is a light-transmitting structure after absorbing moisture. The alarm unit is disposed above the blocking unit, and the alarm unit includes a photosensitive switch and a signal transmitter connected in series, and the alarm unit is connected in parallel with the laser light source.

2. The humidity alarm label according to claim 1, wherein The blocking unit includes a transparent glass plate, and a water-wet color-changing ink layer is coated on the outer side of the transparent glass plate. The water-wet color-changing ink layer is a white and opaque structure when dry, and the water-wet color-changing ink layer is a light-transmitting structure after absorbing moisture.

3. The humidity alarm label according to claim 1, wherein The signal transmitter is an NFC radio frequency transmitter. When the photosensitive switch is triggered, the NFC radio frequency transmitter operates to emit a radio frequency signal.

4. The humidity alarm label according to claim 1, characterized in that, The blocking unit and the photosensitive switch are on the same straight line.

5. The humidity alarm label according to claim 4, wherein The photosensitive switch faces the blocking unit, and light-shielding plates are provided on both sides of the sensing end of the photosensitive switch.

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