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    1AM SUV Cruising Neighborhood

    I had to watch the video 4x before I saw it. You do have a good view from that position!
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    1AM SUV Cruising Neighborhood

    I've heard it rumored that state agencies prefer to use private parties for some purposes, because some laws are more strict about what can go into government databases and how long it can stay there.
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    ALPR Statutes / laws by state - updated 1/2/2018

    It looks like (since 2015) California Civil Code section 1798.90.51 Law section requires anyone operating an ALPR in California to have written procedures describing authorized use, maintain adequate security of records etc. and 1798.90.54 allows anyone harmed by an unauthorized use to sue...
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    (audio only) gunfire

    Yeah, sound definitely tells you something. Here's a random car from 3am this morning- just some guy doing 50 on our narrow 25-mph side street. I'm surprised he didn't hit anything. Discovered this morning the one camera set up for cars at night had the illuminator power supply fail. Not much...
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    (audio only) gunfire

    as you guessed, this wasn't the first shooting in the area.
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    (audio only) gunfire

    Thanks for the comment. I doubt this would work in 70 mph wind. So far, so good with the mild weather here. I was worried about humidity so I sealed the mic element (in a short tube), into a 4-mil latex "finger cot" with a packet of silica gel. Then the mic assembly was built into a...
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    Do police ignore your video?

    I'll report back if anything comes of it. On the topic of paper plates and car breakins in CA, here's a fun article: SF neighborhood, police powerless against car break-ins Supposedly, in 2019 a new law takes effect in CA (finally!) that all cars need to have temporary tags or real plates...
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    Are Dahua vari-focal lenses constant aperture?

    You are correct that with SLR camera lenses, it is traditional to show the aperture range whenever it is not constant. However with security camera lenses, I would not make that assumption, particularly when maximum f/number is a selling point, and it is much more expensive to make a...
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    Driving slow, and making me a little worried

    Thanks TechBill, that would explain it. Guess I don't get out enough; I had never seen such a shirt before, so I didn't realize there would be camo sleeves on an otherwise plain white shirt. Another neighbor had earlier described that particular car possibly casing houses in the area, which...
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    Driving slow, and making me a little worried

    Ok, I guess he just has a strange sense of fashion! Unfortunately the 16mm lens is just a few mm too long to completely fit inside. I had to break out the little glass window, then the lens fits through the hole with the end of the lens just flush with the outside of the case.I used the foam...
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    Driving slow, and making me a little worried

    This guy came down the street almost at idle, I'd say a slow jogging pace. With his window down, you can see the driver. Can anyone offer an opinion? Is that a white ballistic vest he's wearing? Camera is the cheap Dahua turret IPC-HDW4431C-A retrofit with a 16mm lens.
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    (audio only) gunfire

    If the news report is right, the first shots were into the car after it crashed, and the second set was at a fleeing passenger. (EDIT) Another news source said car was shot at, then crashed into parked cars + tree so you may be exactly right. As for recording software, I'm running Linux using...
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    (audio only) gunfire

    I have tried a few different external mics, and the Dahua turret internal mics are not bad, but I still wasn't satisfied with the noise level. That recording is a home-brew custom mic which picks up faint sounds somewhat better. Partly due to a low-noise electret capsule (spec is 80 dB SNR...
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    (audio only) gunfire

    (EDIT) Unfortunately there was a local shooting last night. I don't know if an audio-only recording from about 1/2 mile away tells much, but what was reported on Nextdoor from more immediate neighbors was 5 shots. From this audio, it sounds a lot like there were a few additional shots...
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    Package Thief

    California plate 5TOD942 is registered to a 2006 Pontiac Grand Prix Sedan 4D Engine: 3.8L V6 SFI according to SearchQuarry - Background Checks, License Plate Searches, & More That's what they tell you for free. For money, they claim to tell you the registered owner's name and any traffic...
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    Do police ignore your video?

    Just as a followup, regarding the original incident: the city councilman's office was able to forward the video to police. Still not sure why SJPD didn't take interest in the first place. In fairness to other local police agencies, it appears that some of them eg. Fremont PD does actively...
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    New setup: 2 camera's and a NVR

    So far I have been using an older Linux laptop running Bluecherry as my makeshift NVR. It has been working reliably and I am good with that solution, but now a neighbor wants advice and I don't want to recommend something that needs a lot of configuration. So I'm curious what a good...
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    Changing Camera Sensors

    Due to the added cost, the great majority of consumer-level IP cameras do not have PTZ, they are on fixed mountings. I guess there are a fair number now with zoom and focus settings only (no pan/tilt). As you say, there is no reason you couldn't get a simple pan/tilt platform and put your...
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    Changing Camera Sensors

    There are actually apps to use your phone as a sort-of IP camera, over wifi so I think you can even do this on an older deactivated phone just using your own home wifi. See for example Turn your old phone into a home security camera you can watch from anywhere
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    Changing Camera Sensors

    There is basically no market standardization between image sensors, and a variety of electrical interfaces. Each different model (even for same manufacturer) needs different software but more critically, often it has a different hardware interface so there is generally no "plug-and-play"...
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    door-to-door salesguy talents

    The cheap Dahua is nothing special after dark, as you can see (this is even with an additional 20W white LED flood). The Dahua "Starlight" series is definitely better at night, although of course somewhat more expensive. I have several of each kind for various purposes. I don't rely on this...
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    door-to-door salesguy talents

    That is the cheapest Dahua IP camera I've seen of its kind, a 4MP turret type IPC-HDW4431C-A which is the "international" version (hacked firmware for English language) non-upgradeable, you take your chances. Comes stock with a fixed wide-angle lens. I took it apart and replaced the lens...
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    door-to-door salesguy talents

    Nothing special, just thought it was funny. I wasn't home at the time. My camera happened to capture a still at just the right time. Maybe he's thinking, "if I do balancing tricks with my sales binder, they will talk to me...?"
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    Do police ignore your video?

    Before hitting the newspapers I did contact my district's city council member and his office did get back today with an apology, and says they want to figure out what happened and fix this right away. So, we shall see.
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    Do police ignore your video?

    I agree the local news may be the way to go. By the way, I am not saying they do nothing; they do respond to violent incidents and real-time intruders. However, in this case and with others I'm aware of, property crime (of any magnitude) after the fact is simply not on the radar. I do not...
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    Do police ignore your video?

    Local theft of > $4000 in tools from a work truck (not mine, thankfully) parked on the street in front of a house overnight. Neighbors have video of two people involved, including a clear view of a getaway vehicle and the plate. San Jose PD was offered the video. Their response...
    • cam235
    • Thread
    • evidence grand theft
    • Replies: 23
    • Forum: Chit-Chat
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    Security Guard Shoots Robbers Holding Up A 7 Eleven With A Fake Gun.. "Am I shot? Oh fck Yeah!

    You'd think a real incident like this would have some reliable local source willing to confirm it. So far, haven't seen one: Nope, 'good guy with a gun' who opened up on robbers wasn't in NJ "But Hamilton Police Lt. Michael Kelvy, after getting a number of inquiries about the incident, said he...
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    3 teens in west San Jose home breakin (11am Sat. Dec. 9)

    There's definitely a security-convenience tradeoff. I presume the person posting this had the door unlocked, and it wouldn't have happened if it was locked. Most people will give up on arming a security system quickly after a few false alarms (though apparently not one of my neighbors...
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    3 teens in west San Jose home breakin (11am Sat. Dec. 9)

    Just FYI, here's a different post I just saw on Nextdoor today, also in San Jose. This one apparently just trying to get out of the cold. But I wonder, with no report, for the purposes of official statistics it did not happen? "[Re: Homeless...] Yes please lock up! Even though the lights...
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    Dedicated License Plate Cam project

    If you use variable bitrate compression, you normally see the highest bitrate at dusk and dawn, because the image is most noisy then and noise doesn't compress well. During the night the camera normally does more noise-reduction before compression, and during the day there's less noise to...
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