Intelligent logistics management label with high reliability and low power consumption

Abstract

The utility model provides an intelligent logistics management label with high reliability and low power consumption, which comprises a bottom cover, a shell, a circuit board and a battery, the circuit board is provided with a falling alarm switch, and the falling alarm switch comprises a microswitch fixedly arranged on the circuit board; the mounting seat covers the periphery of the microswitch, and a slot is formed in the middle of the mounting seat; and the key assembly comprises a plastic part, an elastic sealing part and a key cap, the plastic part is fixed on the mounting seat, a hollow bulge is arranged in the plastic part, and a spring is arranged in the hollow bulge. The device has excellent impact resistance and environmental adaptability, can still keep stable working performance in a complex logistics environment, and effectively solves the problems of insufficient sensitivity and high false alarm rate of a traditional falling detection device.

Description

Technical Field

[0001] This utility model relates to a highly reliable, low-power intelligent logistics management tag. Background Technology

[0002] In intelligent logistics management, electronic tags (such as RFID tags and Bluetooth tags) are widely used for cargo tracking, inventory management, and transportation monitoring. These tags are typically attached to the surface of goods or packaging and transmit data such as location, temperature, and vibration in real time via wireless communication technology. However, during actual transportation or warehousing, tags may loosen or fall off due to mechanical vibration, human impact, or adhesive aging, leading to data loss or monitoring failure, severely impacting the reliability of logistics management. Currently, some smart tags use microswitches as detachment detection devices: when the tag is properly installed, the microswitch is pressed and connected, and the system determines that the installation is normal; when the tag falls off, the switch pops up and disconnects, triggering an alarm. However, existing technology has the following problems:

[0003] Insufficient trigger travel and low detection sensitivity: Traditional microswitches have a short mechanical travel (usually only 0.1 to 0.5 mm). If the label is slightly lifted due to vibration or adhesive failure but does not completely fall off, the switch may still remain in the conducting state, causing the system to fail to alarm in time and posing a risk of missed detection.

[0004] Poor shock resistance and prone to false triggering: Frequent vibrations and collisions in the logistics environment may cause microswitches to malfunction momentarily, or the springs may become fatigued after long-term use, affecting the reliability of detection.

[0005] High power consumption is not conducive to long-term use: To ensure real-time monitoring, existing solutions require continuous power supply to detect the switch status, but the contact resistance of the micro switch and the standby power consumption of the circuit limit its application in low-power scenarios (such as battery-powered tags).

[0006] To address the aforementioned issues, this paper proposes an improved intelligent logistics management tag detachment detection structure. By adding a spring-assisted stroke amplification mechanism, the effective trigger stroke of the micro switch is increased to 1-2 mm, enabling reliable alarm triggering even if the tag becomes slightly loose. At the same time, the mechanical structure is optimized to enhance impact resistance, and combined with a low-power circuit design, a balance between high reliability and long battery life is achieved. Utility Model Content

[0007] This invention provides a highly reliable, low-power intelligent logistics management tag that can effectively solve the above-mentioned problems.

[0008] This utility model is implemented as follows:

[0009] A highly reliable, low-power smart logistics management tag includes a bottom cover, a housing, a circuit board, and a battery.

[0010] The circuit board is equipped with a detachment alarm switch, which includes:

[0011] A micro switch is fixedly mounted on the circuit board;

[0012] A mounting base is provided around the micro switch, and a slot is provided in the middle of the base.

[0013] The button assembly includes a plastic part, an elastic seal, and a button cap. The plastic part is fixed on the mounting base and has a hollow protrusion inside. A spring is installed inside the hollow protrusion. One end of the spring is connected to the button cap, and the other end abuts against the trigger end of the micro switch. When the label is installed in place, the button cap is pressed and pushes the spring to trigger the micro switch. When the label is removed, the spring returns to its original position, causing the micro switch to disconnect.

[0014] The beneficial effects of this utility model are:

[0015] (1) This utility model uses an innovative spring-extended triggering mechanism. When the label is installed in place, the button cap is pressed to push the spring to accurately trigger the micro switch. When the label falls off, the spring quickly resets and disconnects the switch. This structure increases the effective triggering stroke of the traditional micro switch from 0.5mm to 2mm, which significantly improves the detection sensitivity. The synergistic effect of the spring and the elastic seal ensures stable and reliable triggering and resetting actions. The annular adapter achieves high-precision stroke control of ±0.05mm, which enables accurate identification even if the label is slightly displaced. At the same time, the mechanism has excellent impact resistance and environmental adaptability. It can maintain stable working performance in complex logistics environments and effectively solves the problems of insufficient sensitivity and high false alarm rate of traditional drop detection devices. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is the front view of this utility model.

[0018] Figure 2 This is a schematic diagram showing the unfolded structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the internal structure of the bottom cover of this utility model.

[0020] Figure 4This is a schematic diagram showing the connection of the bottom cover, circuit board, and battery of this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the detachment alarm switch of this utility model.

[0022] Explanation of icon numbers:

[0023] 10. Bottom cover; 100. Groove; 102. Embedded groove; 104. First edging; 106. Positioning protrusion;

[0024] 20. Outer shell; 200. Lower protrusion; 202. Annular cylinder; 204. Connecting seat; 206. Insertion block; 208. Rubber; 210. Second edging; 212. Third edging; 2120. Reinforcing rib; 214. Inner ring seat; 216. Support rod;

[0025] 30. Circuit board; 300. Positioning hole;

[0026] 40. Dislodgement alarm switch; 400. Micro switch; 402. Mounting base; 404. Screw; 406. Slot; 408. Ring adapter; 410. Plastic part; 412. Elastic seal; 414. Hollow protrusion; 416. Spring; 418. Button cap;

[0027] 50. Battery. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0029] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] Reference Figure 1-5As shown, a highly reliable and low-power intelligent logistics management tag includes a bottom cover 10, a shell 20, a circuit board 30, and a battery 50. The back of the shell 20 is provided with a second edge 210 and a third edge 212, and a reinforcing rib 2120 is provided on the third edge 212. An annular cylinder 202 is provided at one corner of the back of the shell 20, and a connecting seat 204 is provided around the outer wall of the annular cylinder 202. An insertion block 206 is provided between every two connecting seats 204. An inner ring seat 214 is provided at another corner of the back of the shell 20, and a stop rod 216 is provided on the outer wall of the inner ring seat 214 and engages with the positioning protrusion 106. A hollow groove for the protrusion of a button cap 418 is formed at one corner of the front of the shell 20. A rubber 208 is provided on the insertion block 206 for pressing and fixing with the grooves on both sides of the mounting base 402.

[0031] The circuit board 30 is provided with a detachment alarm switch 40, which includes: a micro switch 400, fixedly mounted on the circuit board 30; a mounting base 402, covering the outer periphery of the micro switch 400, with a slot 406 in the middle; and a button assembly, including a plastic part 410, an elastic seal 412, and a button cap 418. The plastic part 410 is fixed on the mounting base 402 and has a hollow protrusion 414 inside, with a spring 416 inside the hollow protrusion 414. One end of the 16 is connected to the button cap 418, and the other end abuts against the trigger end of the micro switch 400. When the label is installed in place, the button cap 418 is pressed to push the spring 416 to trigger the micro switch 400. When the label falls off, the spring 416 resets and the micro switch 400 is disconnected. The mounting base 402 has a slot 406 with an annular adapter 408 to limit the displacement stroke of the button cap 418. The outer periphery of the mounting base 402 is provided with screws 404 for connecting to the connecting base 204.

[0032] The bottom cover 10 has symmetrical grooves 100 at both ends and a groove 102 formed on the top edge of the bottom cover 10. The groove 102 is engaged with the lower protrusion 200 formed on the bottom edge of the outer casing 20. The bottom cover 10 has a first edging 104 for fixing the battery 50 and a positioning protrusion 106 for connecting with the positioning hole 300 formed on the circuit board 30.

[0033] Example 1: (This utility model)

[0034] Technical features: Utilizes a variable pitch helical spring (free length 8mm, stiffness 0.8N / mm), equipped with a ring adapter (POM material, ±0.02mm tolerance), silicone elastic seal (hardness 50 Shore A), and a 2mm effective trigger stroke design.

[0035] Test conditions: Temperature cycling test (-40℃~85℃, 100 cycles), mechanical shock test (50G, 11ms, 3-axis 6-direction), vibration test (5-500Hz, 3.5Grms), life test (200,000 presses).

[0036] Test results:

[0037] Test Project result Trigger reliability 100% accurate triggering False alarm rate <0.01％ Reset Consistency ±0.03mm deviation End-of-life characteristics Spring force attenuation <5%

[0038] Comparative Example 1 (Traditional Micro Switch)

[0039] Technical features: Direct-pressure micro switch (0.5mm stroke), springless amplification mechanism, ordinary rubber seal, direct trigger design;

[0040] Test results:

[0041] Test Project result Trigger reliability 82% (Low-temperature failure) False alarm rate 1.2％ Reset Consistency ±0.15mm deviation End-of-life characteristics Switch contact wear

[0042] Comparative Example 2 (Commercially available similar products)

[0043] Technical features: Standard compression spring (free length 6mm), plastic limit ring, no special sealing design, 1.2mm nominal stroke;

[0044] Test results:

[0045] Test Project result Trigger reliability 91％ False alarm rate 0.3％ Reset Consistency ±0.08mm deviation End-of-life characteristics Plastic deformation of springs

[0046] Comparison of key technical indicators:

[0047]

[0048]

[0049] Comparison of application scenarios:

[0050] Example 1: After working continuously for 30 days at -25℃, the trigger response time remained stable (20±2ms);

[0051] Comparative Example 1: Triggering delays (up to 150ms) began to appear on day 5;

[0052] Comparative Example 2: Three false alarms occurred on day 15.

[0053] Heavy cargo transportation test:

[0054] Example 1: Functionally normal after undergoing a 3m drop test;

[0055] Comparative Example 1: A drop of 1.5m caused the switch to jam;

[0056] Comparative Example 2: The travel distance decreased by 30% after a 2m drop.

[0057] In summary, this solution improves stroke control accuracy from ±0.15mm to ±0.03mm by using a variable pitch spring and a precision adapter. The wide operating temperature range (-40~85℃) is significantly improved compared to the traditional solution (-20~60℃). Furthermore, it maintains over 95% performance after 200,000 life cycles, far exceeding the industry standard (50,000 cycles). Finally, although the unit cost increases by 15%, the repair rate is reduced by 80%, resulting in a 40% decrease in overall cost.

[0058] Working principle:

[0059] When the smart logistics tag is installed correctly, the button cap 418 is subjected to external pressure, which pushes the spring 416 to compress and trigger the micro switch 400 to conduct. At this time, the system determines that the tag is installed in place. If the tag is loose or falls off, the button cap 418 loses pressure, the spring 416 rebounds to its original position, causing the micro switch 400 to disconnect and trigger an alarm. By setting the spring 416 inside the hollow protrusion 414, the trigger stroke of the micro switch 400 is amplified, so that even if the tag is slightly tilted, such as 1-2mm, the alarm can be reliably triggered, avoiding the problem of traditional micro switches having a short stroke of 0.1-0.5mm. To address the issue of missed detections, the elastic seal 412 and the annular adapter 408 jointly restrict the displacement of the button cap 418, preventing false triggering due to vibrations during logistics. Simultaneously, the mounting base 402 is fixed to the connecting base 204 of the housing 20 by screws 404, and the rubber 208 of the plug block 206 provides cushioning, enhancing overall structural stability. Furthermore, the groove 102 of the bottom cover 10 engages with the lower protrusion 200 of the housing 20, and the positioning protrusion 106 aligns with the positioning hole 300 of the circuit board 30, achieving precise fixation of the battery 50 and the circuit board 30, thus improving production efficiency. In summary, this design, through the synergy of mechanical structure and circuitry, achieves high-reliability detachment detection with low power consumption, making it suitable for harsh logistics environments.

[0060] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-reliability and low-power-consumption intelligent logistics management tag, comprising a bottom cover (10), a shell (20), a circuit board (30) and a battery (50), characterized in that, a falling alarm switch (40) is arranged on the circuit board (30), and the falling alarm switch (40) comprises: a micro switch (400) fixedly arranged on the circuit board (30); a mounting seat (402) covering the outer periphery of the micro switch (400) and provided with a slot (406) in the middle part; a key assembly comprising a plastic part (410), an elastic sealing part (412) and a key cap (418), the plastic part (410) is fixed on the mounting seat (402) and provided with a hollow protrusion (414) in the inside, the hollow protrusion (414) is provided with a spring (416) in the inside, one end of the spring (416) is connected with the key cap (418) and the other end abuts against the triggering end of the micro switch (400); when the tag is installed in place, the key cap (418) is pressed to push the spring (416) to trigger the micro switch (400); when the tag falls off, the spring (416) resets to disconnect the micro switch (400). 2.The high-reliability and low-power-consumption intelligent logistics management tag of claim 1, wherein, The slot (406) of the mounting seat (402) is provided with an annular adapter seat (408) for limiting the displacement stroke of the key cap (418). 3.The high-reliability and low-power-consumption intelligent logistics management tag of claim 1, wherein, The bottom cover (10) is symmetrically provided with a groove (100) at both ends, and an embedding groove (102) is formed at the top edge of the bottom cover (10), and the embedding groove (102) is buckled and spliced with the lower protrusion (200) formed on the bottom edge of the shell (20). 4.The high-reliability and low-power-consumption intelligent logistics management tag of claim 1, wherein, The bottom cover (10) is internally provided with a first edge cover (104) for fixing the battery (50) and a positioning protrusion (106) for connecting with the positioning hole (300) formed on the circuit board (30). 5.The high-reliability and low-power-consumption intelligent logistics management tag of claim 1, wherein, The back of the shell (20) is further provided with a second edge cover (210) and a third edge cover (212), and a reinforcing rib (2120) is arranged on the third edge cover (212). 6.The high-reliability and low-power-consumption intelligent logistics management tag of claim 1, wherein, The back of the shell (20) is provided with an annular cylinder (202) at one corner, and a connecting seat (204) is arranged around the outer wall of the annular cylinder (202), and a plug-in block (206) is arranged between every two connecting seats (204). 7.The high-reliability and low-power-consumption intelligent logistics management tag of claim 4, wherein, The back of the shell (20) is provided with an inner ring seat (214) at another corner, and a resisting rod (216) is arranged on the outer wall of the inner ring seat (214) and engaged with the positioning protrusion (106). 8.The high-reliability and low-power-consumption intelligent logistics management tag of claim 6, wherein, The outer periphery of the mounting seat (402) is provided with a screw (404) for connecting with the connecting seat (204). 9.The high-reliability and low-power-consumption intelligent logistics management tag of claim 6, wherein, The plug-in block (206) is provided with a rubber (208) for extrusion and fixation with the notches on both sides of the mounting seat (402). 10.The intelligent logistics management tag of claim 1, wherein, The front of the shell (20) is formed with a hollow groove at one corner for the protrusion of the key cap (418).

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