The Safety First™ system uses your smartphone or wearable computer or wearable camera to stream live audio/video, gps, indoor positioning location, vibration (movement), and physiological (ECG, EEG, etc) information to a monitoring centre or "Safety Net™" (social network for safety).
SafetyFirst uses sousveillance, e.g. cameras or other sensors (e.g. smartphone or wearable computer) attached to people.
Moreover, with the PSD, the user can, if desired, open a 2-way communications link to establish a matter-of-fact remote presence. One embodiment of Safety First™ is a device that transmits live video for remote assistance, safety, or security. The remote assistance is by way of your "Safety Net™" == network of friends and family, or a professional service, or, in special situations, police, security guards, or other authorities (or in the case of a person being harrassed by police, the SafetyNet™ can include human rights workers, news authorities, reporters, etc.).
Late at night, a person can have a virtual "safe walk" effect as one or more remote observers keep a window on their view in the background of their other work (e.g. doing other work on their computer while keeping a small side window of PSD video data open to glance at now and again).
For the elderly, and those at risk, e.g. persons with special needs, a remote 2-way link is established. A synergistic effect often occurs in which an able-bodied but visually impaired person can join forces with a mobility challenged person, one living vicariously through the eyes of the other.
The PSD might have saved the life of Sammy Yatim, and others suffering from mental challenges, who otherwise end up being shot dead by police because of differences in their responses or actions. In this case, the PSD makes it known to the potential attacker (whether the attacker is a civilian or a guard or an officer) that the attacker is being watched by a remote entity.
In situations where surveillance fails due to the inherent lack of integrity of surveillance, the PSD can provide sousveillance. See, for example, "Cop Turns off Dash Cam & Attacks Unarmed 66 Year Old Man with Dementia", where an officer turns off his surveillance camera so that he can break the law and not get caught. Knowing that another camera feed is running, and being able to talk with a remote representative, might have helped prevent this kind of violence.
Much like the big screen TV displaying video surveillance at the entrance to a shopping mall, the PSD can include a wearable video screen that shows a video conference call with a remote call centre like Ingle International, a company that already has extensive experience with tense standoffs like hostage negotions and hostile attackers.
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