{"id":7883,"date":"2022-07-29T11:47:20","date_gmt":"2022-07-29T03:47:20","guid":{"rendered":"https:\/\/store.west-hn.com\/?post_type=product&p=7883"},"modified":"2024-03-25T11:49:19","modified_gmt":"2024-03-25T03:49:19","slug":"we-t33","status":"publish","type":"product","link":"https:\/\/store.west-hn.com\/en\/product\/we-t33\/","title":{"rendered":"Disposable battery tamper-evident anti-theft tag WE-T33"},"content":{"rendered":"

summarize<\/strong><\/h1>\n

Tamper-evident electronic tags (electronic nameplates) pasted on valuable items, the deployment of a good positioning system, you can real-time view of the current location of the items, historical trajectory, inventory records and so on. Once the label is torn off, even if the immediate recovery of tamper-proof button, the system will immediately issue an alarm event to remind the user to intervene in a timely manner to dispose of.<\/p>\n

Electronic tags ultra-thin design, including 3M adhesive overall thickness of only 5mm, the size of only 3\/4 of the ID card, affixed to the surface of the item, beautiful, generous. vhb 3M adhesive adhesive is good, firmly pasted. Electronic tags have a 400mAH disposable lithium battery inside, lifetime can be launched 40 million times (set up 5 seconds 1 time, can be used for 6 years), the launch distance can reach 100 meters in the open. There is a real-time power reminder, once the battery is undervoltage, remind the user to replace the label in time.<\/p>\n

Ordinary users can directly use our inventory service system to realize real-time monitoring of the location of the items, historical track query, inventory record analysis, anti-tampering alarm disposal and other management operations. Special users can develop their own application software, docking our location server (open protocol), secondary development of their own management platform, or access to existing platforms.<\/p>\n

Application Areas<\/strong><\/h2>\n

Asset management<\/p>\n

Valuables management<\/p>\n

Positioning principle<\/strong><\/h1>\n\n\t
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ZIGBEE localization technology and application of WorldTech<\/h2>\n

<\/b>Label Ranging Formula<\/span><\/b><\/h3><\/div>\n\n
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BTS accepts tag field strength as a function of distance<\/h2>\n

Measurement of the wireless signal field strength of the tag to calculate the distance between the tag and the antenna, distance and wireless signal strength for the exponential curve relationship between<\/p>\n

There are 3 values that we need to measure and calibrate over and over again<\/p>\n

1, L0: the signal strength when the distance between the tag and the reader is 0 cm, the measured value is -8dBm.
2\u3001 L1: The signal strength when the distance between the tag and the reader is 40 centimeters, the measured value is -20dBm.
3, L2: label and reader distance of 100 cm when the signal strength, measured value of -30dBm<\/p>\n

Based on these three values, the derived equation is as follows.<\/p>\n\t

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