For more than a decade, "navigation equipment" has been the protagonist in spy movies and comic books, and science fiction novels often provide Orwellian real-time tracking plots. Batman often wears an electronic tracker on his weapon belt; James Bond tracks Republicans to pound their nest. The same technology is now very popular, and some private applications have begun to use this technology, such as tracking important shipments to the minute. The possible applications for such devices are already very extensive, and spy applications are no longer the only way.
The GPS Snitch was obtained from Spy Exchange, a local retailer specializing in the sale of surveillance devices and related products. The price is $ 299. The product also requires an activation fee and service contract, but all work can be done on the same website that provides real-time monitoring. Users with little spy experience can also plot the changing location of GPS Snitch on Google maps and / or satellite photos. Snitch can also send location updates to cell phones in the form of short messages.
Perhaps the most fascinating feature is that Snitch can work in locations that usually hinder GPS reception. In a moving vehicle, Snitch can be hidden in a small cabinet or trunk in the dashboard of the car to track the position, direction and speed of the vehicle. Let's explore the hardware of Snitch and study the technology used.
Snitch is built from a pair of ready-made modules supported by perfect support circuits. Among them, providing the cellular connection is MC56 of Cinterion Wireless Module Company (former Siemens), which is an 850/1800 / 1900MHz GSM / GPRS solution that can support voice, but is mainly used for data transmission here. There is an Infineon PMB7850 GSM / GPRS baseband processor on the MC56 circuit board. The periphery of the processor is the M36W0T604 multi-chip SDRAM / flash memory provided by STMicroelectronics. Skyworks' quad-band GSM transceiver SKY74963 is here to complete antenna switching and transmit power amplification with the front-end module SKY77500. The module is connected to a fairly rigid Flex PCB antenna and SIM card holder, and uses a board-to-board connection to the main PCB.
The GPS module obviously optimized for low signal conditions is provided by New Zealand's Navman company under the trademark Jupiter 30. The module area is slightly larger than 25 square millimeters and about 3 millimeters in height. The main target is obviously OEMs who need embedded functions.
The GPS module is equipped with a SiRF "SiRFStar 3" GSC3e / LP multi-chip package (built-in GPS baseband processor and GPS receiver) and an independent 512kB NOR flash memory (SST 39VF400) and peripheral circuits on a small PCB. Instead of using GPS-specific LNA (low noise amplifier), Navman chose Infineon's BGA62217, a high-gain, broadband silicon-germanium device that can operate in the 1.575GHz GPS frequency band through external configuration. The GPS module is directly soldered on the main PCB and connected to a large (20x20x4mm) 1572.42MHz ceramic patch antenna (HA-1575C20T4) from Hankook Antenna.
The main PCB is connected to these two modules, and supports GPS antennas, SIM card holders and mobile switches, as well as some control and power management circuits. The most interesting thing is the working brain-TI's mixed-signal processor MSP430F1611, which is connected to STMicroelectronics' 16MB SLC NAND flash memory (NAND128W3A2BN6).
The internal fixed 3.7V lithium-ion battery has a nominal capacity of up to 2000mAH, enough to support the manufacturer's claimed seven-day standby time. However, the external DC power supply runs at 12V. As the most amateur detective can think of, this allows Snitch to connect directly to the car's battery. Wiring accessories are sold separately.
In an era where scientific fantasy continues to become scientific facts, it should come as no surprise that devices like Blackline GPS Snitch appear. We can all see real lanes and roofs in satellite photos, witness the excellent speed and accuracy of excellent GPS systems, and the evolution of cellular phones into portable Internet devices. The rest is just a matter of time and design effort. In the end, the combination of these products and technologies will be perfect for real-time tracking. The imagination is a bit richer, and the transmission beam will soon become a reality.
Figure: With the introduction of devices such as Blackline GPS Snitch, the real-time tracking function has begun to enter the mass market.
Author: Bob Widenhofer
Product analyst
Portelligent
Neckband Earphones,Neck Earphones,Best Neckband Earphones,Wireless Neckband Earphones
Dongguang Vowsound Electronics Co., Ltd. , https://www.vowsound.com