Multi-functional visitor system
A visitor system and multi-functional technology, applied in time registers, electric vehicles, instruments, etc., can solve problems such as untraceability, false information, and inhumane operation, so as to prevent charger damage, prolong service life, and eliminate safety hidden effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 2
[0046] On the basis of Embodiment 1, the difference between the ID card reading device provided by this embodiment is that the ID card reading device of this embodiment includes an external charger.
[0047] The charger includes a power adapter and the anti-battery reverse connection protection circuit as described in Embodiment 1; the DC output terminal of the power adapter is connected to the input end of the anti-battery reverse connection protection circuit, and is passed through the anti-battery reverse connection protection circuit Charge the accumulator in the ID card reading device.
[0048] The battery reverse connection protection circuit successfully prevents the charger from being damaged due to battery polarity reverse connection.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com